Home / 131,682.38-181,724.03-74,333.16

Finding the Fourth Proportional to 131,682.38, 181,724.03 and 74,333.16

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Solution

The fourth proportional to 131,682.38, 181,724.03 and 74,333.16 is: 102,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.38 : 181,724.03 = 74,333.16 : x
  2. Step 2: Convert to fraction form
    131,682.38/181,724.03 = 74,333.16/x
  3. Step 3: Cross multiply
    131,682.38x = 181,724.03 × 74,333.16
  4. Step 4: Simplify right side
    131,682.38x = 13,508,121,480.48
  5. Step 5: Solve for x
    x = 13,508,121,480.48/131,682.38
  6. Step 6: Final answer
    x = 102,581.09

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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.