Home / 156,079.46-215,390.38-88,099.30

Finding the Fourth Proportional to 156,079.46, 215,390.38 and 88,099.30

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Solution

The fourth proportional to 156,079.46, 215,390.38 and 88,099.30 is: 121,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,079.46 : 215,390.38 = 88,099.30 : x
  2. Step 2: Convert to fraction form
    156,079.46/215,390.38 = 88,099.30/x
  3. Step 3: Cross multiply
    156,079.46x = 215,390.38 × 88,099.30
  4. Step 4: Simplify right side
    156,079.46x = 18,975,741,704.73
  5. Step 5: Solve for x
    x = 18,975,741,704.73/156,079.46
  6. Step 6: Final answer
    x = 121,577.44

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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.