Home / 145,290.32-217,948.02-40,109.30

Finding the Fourth Proportional to 145,290.32, 217,948.02 and 40,109.30

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Solution

The fourth proportional to 145,290.32, 217,948.02 and 40,109.30 is: 60,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,290.32 : 217,948.02 = 40,109.30 : x
  2. Step 2: Convert to fraction form
    145,290.32/217,948.02 = 40,109.30/x
  3. Step 3: Cross multiply
    145,290.32x = 217,948.02 × 40,109.30
  4. Step 4: Simplify right side
    145,290.32x = 8,741,742,518.59
  5. Step 5: Solve for x
    x = 8,741,742,518.59/145,290.32
  6. Step 6: Final answer
    x = 60,167.41

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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.