Home / 137,124.67-205,708.92-42,332.57

Finding the Fourth Proportional to 137,124.67, 205,708.92 and 42,332.57

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Solution

The fourth proportional to 137,124.67, 205,708.92 and 42,332.57 is: 63,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,124.67 : 205,708.92 = 42,332.57 : x
  2. Step 2: Convert to fraction form
    137,124.67/205,708.92 = 42,332.57/x
  3. Step 3: Cross multiply
    137,124.67x = 205,708.92 × 42,332.57
  4. Step 4: Simplify right side
    137,124.67x = 8,708,187,596.79
  5. Step 5: Solve for x
    x = 8,708,187,596.79/137,124.67
  6. Step 6: Final answer
    x = 63,505.62

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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.