Home / 138,200.57-207,315.67-38,361.19

Finding the Fourth Proportional to 138,200.57, 207,315.67 and 38,361.19

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Solution

The fourth proportional to 138,200.57, 207,315.67 and 38,361.19 is: 57,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200.57 : 207,315.67 = 38,361.19 : x
  2. Step 2: Convert to fraction form
    138,200.57/207,315.67 = 38,361.19/x
  3. Step 3: Cross multiply
    138,200.57x = 207,315.67 × 38,361.19
  4. Step 4: Simplify right side
    138,200.57x = 7,952,874,770.27
  5. Step 5: Solve for x
    x = 7,952,874,770.27/138,200.57
  6. Step 6: Final answer
    x = 57,545.89

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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.