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Finding the Fourth Proportional to 137,785.86, 206,502.62 and 119,943.59

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Solution

The fourth proportional to 137,785.86, 206,502.62 and 119,943.59 is: 179,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,785.86 : 206,502.62 = 119,943.59 : x
  2. Step 2: Convert to fraction form
    137,785.86/206,502.62 = 119,943.59/x
  3. Step 3: Cross multiply
    137,785.86x = 206,502.62 × 119,943.59
  4. Step 4: Simplify right side
    137,785.86x = 24,768,663,954.97
  5. Step 5: Solve for x
    x = 24,768,663,954.97/137,785.86
  6. Step 6: Final answer
    x = 179,762.02

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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.