Home / 126,773.20-190,159.80-74,155.60

Finding the Fourth Proportional to 126,773.20, 190,159.80 and 74,155.60

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Solution

The fourth proportional to 126,773.20, 190,159.80 and 74,155.60 is: 111,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,773.20 : 190,159.80 = 74,155.60 : x
  2. Step 2: Convert to fraction form
    126,773.20/190,159.80 = 74,155.60/x
  3. Step 3: Cross multiply
    126,773.20x = 190,159.80 × 74,155.60
  4. Step 4: Simplify right side
    126,773.20x = 14,101,414,064.88
  5. Step 5: Solve for x
    x = 14,101,414,064.88/126,773.20
  6. Step 6: Final answer
    x = 111,233.40

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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.