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Finding the Fourth Proportional to 156,760.60, 216,354.08 and 88,781.08

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Solution

The fourth proportional to 156,760.60, 216,354.08 and 88,781.08 is: 122,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,760.60 : 216,354.08 = 88,781.08 : x
  2. Step 2: Convert to fraction form
    156,760.60/216,354.08 = 88,781.08/x
  3. Step 3: Cross multiply
    156,760.60x = 216,354.08 × 88,781.08
  4. Step 4: Simplify right side
    156,760.60x = 19,208,148,884.81
  5. Step 5: Solve for x
    x = 19,208,148,884.81/156,760.60
  6. Step 6: Final answer
    x = 122,531.74

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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.