Home / 134,839.31-202,200.15-71,644.20

Finding the Fourth Proportional to 134,839.31, 202,200.15 and 71,644.20

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Solution

The fourth proportional to 134,839.31, 202,200.15 and 71,644.20 is: 107,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,839.31 : 202,200.15 = 71,644.20 : x
  2. Step 2: Convert to fraction form
    134,839.31/202,200.15 = 71,644.20/x
  3. Step 3: Cross multiply
    134,839.31x = 202,200.15 × 71,644.20
  4. Step 4: Simplify right side
    134,839.31x = 14,486,467,753.96
  5. Step 5: Solve for x
    x = 14,486,467,753.96/134,839.31
  6. Step 6: Final answer
    x = 107,435.04

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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.