Home / 742,078.20-1,113,117.30-181,112.70

Finding the Fourth Proportional to 742,078.20, 1,113,117.30 and 181,112.70

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Solution

The fourth proportional to 742,078.20, 1,113,117.30 and 181,112.70 is: 271,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,078.20 : 1,113,117.30 = 181,112.70 : x
  2. Step 2: Convert to fraction form
    742,078.20/1,113,117.30 = 181,112.70/x
  3. Step 3: Cross multiply
    742,078.20x = 1,113,117.30 × 181,112.70
  4. Step 4: Simplify right side
    742,078.20x = 201,599,679,619.71
  5. Step 5: Solve for x
    x = 201,599,679,619.71/742,078.20
  6. Step 6: Final answer
    x = 271,669.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.