Home / 187,819.70-281,775.75-54,701.20

Finding the Fourth Proportional to 187,819.70, 281,775.75 and 54,701.20

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Solution

The fourth proportional to 187,819.70, 281,775.75 and 54,701.20 is: 82,065.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819.70 : 281,775.75 = 54,701.20 : x
  2. Step 2: Convert to fraction form
    187,819.70/281,775.75 = 54,701.20/x
  3. Step 3: Cross multiply
    187,819.70x = 281,775.75 × 54,701.20
  4. Step 4: Simplify right side
    187,819.70x = 15,413,471,655.90
  5. Step 5: Solve for x
    x = 15,413,471,655.90/187,819.70
  6. Step 6: Final answer
    x = 82,065.26

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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.