Home / 156,372.27-215,790.26-88,380.20

Finding the Fourth Proportional to 156,372.27, 215,790.26 and 88,380.20

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Solution

The fourth proportional to 156,372.27, 215,790.26 and 88,380.20 is: 121,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,372.27 : 215,790.26 = 88,380.20 : x
  2. Step 2: Convert to fraction form
    156,372.27/215,790.26 = 88,380.20/x
  3. Step 3: Cross multiply
    156,372.27x = 215,790.26 × 88,380.20
  4. Step 4: Simplify right side
    156,372.27x = 19,071,584,816.00
  5. Step 5: Solve for x
    x = 19,071,584,816.00/156,372.27
  6. Step 6: Final answer
    x = 121,962.70

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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.