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Finding the Fourth Proportional to 137,762.39, 206,565.93 and 47,762.89

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Solution

The fourth proportional to 137,762.39, 206,565.93 and 47,762.89 is: 71,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,762.39 : 206,565.93 = 47,762.89 : x
  2. Step 2: Convert to fraction form
    137,762.39/206,565.93 = 47,762.89/x
  3. Step 3: Cross multiply
    137,762.39x = 206,565.93 × 47,762.89
  4. Step 4: Simplify right side
    137,762.39x = 9,866,185,275.92
  5. Step 5: Solve for x
    x = 9,866,185,275.92/137,762.39
  6. Step 6: Final answer
    x = 71,617.41

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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.