Home / 156,451.43-215,907.22-88,478.57

Finding the Fourth Proportional to 156,451.43, 215,907.22 and 88,478.57

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Solution

The fourth proportional to 156,451.43, 215,907.22 and 88,478.57 is: 122,102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,451.43 : 215,907.22 = 88,478.57 : x
  2. Step 2: Convert to fraction form
    156,451.43/215,907.22 = 88,478.57/x
  3. Step 3: Cross multiply
    156,451.43x = 215,907.22 × 88,478.57
  4. Step 4: Simplify right side
    156,451.43x = 19,103,161,562.85
  5. Step 5: Solve for x
    x = 19,103,161,562.85/156,451.43
  6. Step 6: Final answer
    x = 122,102.83

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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.