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Finding the Fourth Proportional to 159,785.52, 220,503.87 and 88,165.53

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Solution

The fourth proportional to 159,785.52, 220,503.87 and 88,165.53 is: 121,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,785.52 : 220,503.87 = 88,165.53 : x
  2. Step 2: Convert to fraction form
    159,785.52/220,503.87 = 88,165.53/x
  3. Step 3: Cross multiply
    159,785.52x = 220,503.87 × 88,165.53
  4. Step 4: Simplify right side
    159,785.52x = 19,440,840,565.60
  5. Step 5: Solve for x
    x = 19,440,840,565.60/159,785.52
  6. Step 6: Final answer
    x = 121,668.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.