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Finding the Fourth Proportional to 156,901.53, 216,517.10 and 88,914.54

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Solution

The fourth proportional to 156,901.53, 216,517.10 and 88,914.54 is: 122,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.53 : 216,517.10 = 88,914.54 : x
  2. Step 2: Convert to fraction form
    156,901.53/216,517.10 = 88,914.54/x
  3. Step 3: Cross multiply
    156,901.53x = 216,517.10 × 88,914.54
  4. Step 4: Simplify right side
    156,901.53x = 19,251,517,389.28
  5. Step 5: Solve for x
    x = 19,251,517,389.28/156,901.53
  6. Step 6: Final answer
    x = 122,698.09

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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.