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Finding the Fourth Proportional to 142,684.66, 196,781.96 and 88,913.62

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Solution

The fourth proportional to 142,684.66, 196,781.96 and 88,913.62 is: 122,624.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684.66 : 196,781.96 = 88,913.62 : x
  2. Step 2: Convert to fraction form
    142,684.66/196,781.96 = 88,913.62/x
  3. Step 3: Cross multiply
    142,684.66x = 196,781.96 × 88,913.62
  4. Step 4: Simplify right side
    142,684.66x = 17,496,596,414.30
  5. Step 5: Solve for x
    x = 17,496,596,414.30/142,684.66
  6. Step 6: Final answer
    x = 122,624.23

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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.