Home / 156,432.15-215,863.07-88,439.69

Finding the Fourth Proportional to 156,432.15, 215,863.07 and 88,439.69

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Solution

The fourth proportional to 156,432.15, 215,863.07 and 88,439.69 is: 122,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,432.15 : 215,863.07 = 88,439.69 : x
  2. Step 2: Convert to fraction form
    156,432.15/215,863.07 = 88,439.69/x
  3. Step 3: Cross multiply
    156,432.15x = 215,863.07 × 88,439.69
  4. Step 4: Simplify right side
    156,432.15x = 19,090,861,471.73
  5. Step 5: Solve for x
    x = 19,090,861,471.73/156,432.15
  6. Step 6: Final answer
    x = 122,039.24

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1.5x scale

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.