Home / 156,082.38-215,393.43-88,113.66

Finding the Fourth Proportional to 156,082.38, 215,393.43 and 88,113.66

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Solution

The fourth proportional to 156,082.38, 215,393.43 and 88,113.66 is: 121,596.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082.38 : 215,393.43 = 88,113.66 : x
  2. Step 2: Convert to fraction form
    156,082.38/215,393.43 = 88,113.66/x
  3. Step 3: Cross multiply
    156,082.38x = 215,393.43 × 88,113.66
  4. Step 4: Simplify right side
    156,082.38x = 18,979,103,457.25
  5. Step 5: Solve for x
    x = 18,979,103,457.25/156,082.38
  6. Step 6: Final answer
    x = 121,596.71

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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.