Home / 156,713.30-216,269.28-88,729.10

Finding the Fourth Proportional to 156,713.30, 216,269.28 and 88,729.10

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Solution

The fourth proportional to 156,713.30, 216,269.28 and 88,729.10 is: 122,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,713.30 : 216,269.28 = 88,729.10 : x
  2. Step 2: Convert to fraction form
    156,713.30/216,269.28 = 88,729.10/x
  3. Step 3: Cross multiply
    156,713.30x = 216,269.28 × 88,729.10
  4. Step 4: Simplify right side
    156,713.30x = 19,189,378,572.05
  5. Step 5: Solve for x
    x = 19,189,378,572.05/156,713.30
  6. Step 6: Final answer
    x = 122,448.95

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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.