Home / 131,553.74-181,501.17-80,513.30

Finding the Fourth Proportional to 131,553.74, 181,501.17 and 80,513.30

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Solution

The fourth proportional to 131,553.74, 181,501.17 and 80,513.30 is: 111,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,553.74 : 181,501.17 = 80,513.30 : x
  2. Step 2: Convert to fraction form
    131,553.74/181,501.17 = 80,513.30/x
  3. Step 3: Cross multiply
    131,553.74x = 181,501.17 × 80,513.30
  4. Step 4: Simplify right side
    131,553.74x = 14,613,258,150.56
  5. Step 5: Solve for x
    x = 14,613,258,150.56/131,553.74
  6. Step 6: Final answer
    x = 111,082.04

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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.