Home / 187,805.66-281,709-54,689.18

Finding the Fourth Proportional to 187,805.66, 281,709 and 54,689.18

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Solution

The fourth proportional to 187,805.66, 281,709 and 54,689.18 is: 82,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,805.66 : 281,709 = 54,689.18 : x
  2. Step 2: Convert to fraction form
    187,805.66/281,709 = 54,689.18/x
  3. Step 3: Cross multiply
    187,805.66x = 281,709 × 54,689.18
  4. Step 4: Simplify right side
    187,805.66x = 15,406,434,912.89
  5. Step 5: Solve for x
    x = 15,406,434,912.89/187,805.66
  6. Step 6: Final answer
    x = 82,033.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.