Home / 187,387.28-281,110.32-80,801.54

Finding the Fourth Proportional to 187,387.28, 281,110.32 and 80,801.54

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Solution

The fourth proportional to 187,387.28, 281,110.32 and 80,801.54 is: 121,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,387.28 : 281,110.32 = 80,801.54 : x
  2. Step 2: Convert to fraction form
    187,387.28/281,110.32 = 80,801.54/x
  3. Step 3: Cross multiply
    187,387.28x = 281,110.32 × 80,801.54
  4. Step 4: Simplify right side
    187,387.28x = 22,714,146,765.89
  5. Step 5: Solve for x
    x = 22,714,146,765.89/187,387.28
  6. Step 6: Final answer
    x = 121,214.99

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1.5x scale

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.