Home / 187,678.16-281,320.40-87,754.13

Finding the Fourth Proportional to 187,678.16, 281,320.40 and 87,754.13

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Solution

The fourth proportional to 187,678.16, 281,320.40 and 87,754.13 is: 131,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,678.16 : 281,320.40 = 87,754.13 : x
  2. Step 2: Convert to fraction form
    187,678.16/281,320.40 = 87,754.13/x
  3. Step 3: Cross multiply
    187,678.16x = 281,320.40 × 87,754.13
  4. Step 4: Simplify right side
    187,678.16x = 24,687,025,766.04
  5. Step 5: Solve for x
    x = 24,687,025,766.04/187,678.16
  6. Step 6: Final answer
    x = 131,539.15

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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.