Home / 135,538.92-187,050.06-84,581.82

Finding the Fourth Proportional to 135,538.92, 187,050.06 and 84,581.82

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Solution

The fourth proportional to 135,538.92, 187,050.06 and 84,581.82 is: 116,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,538.92 : 187,050.06 = 84,581.82 : x
  2. Step 2: Convert to fraction form
    135,538.92/187,050.06 = 84,581.82/x
  3. Step 3: Cross multiply
    135,538.92x = 187,050.06 × 84,581.82
  4. Step 4: Simplify right side
    135,538.92x = 15,821,034,505.91
  5. Step 5: Solve for x
    x = 15,821,034,505.91/135,538.92
  6. Step 6: Final answer
    x = 116,726.87

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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.