Home / 156,166.62-215,516.07-88,197.90

Finding the Fourth Proportional to 156,166.62, 215,516.07 and 88,197.90

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Solution

The fourth proportional to 156,166.62, 215,516.07 and 88,197.90 is: 121,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,166.62 : 215,516.07 = 88,197.90 : x
  2. Step 2: Convert to fraction form
    156,166.62/215,516.07 = 88,197.90/x
  3. Step 3: Cross multiply
    156,166.62x = 215,516.07 × 88,197.90
  4. Step 4: Simplify right side
    156,166.62x = 19,008,064,790.25
  5. Step 5: Solve for x
    x = 19,008,064,790.25/156,166.62
  6. Step 6: Final answer
    x = 121,716.57

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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.