Home / 187,705.04-281,523.54-75,380.72

Finding the Fourth Proportional to 187,705.04, 281,523.54 and 75,380.72

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Solution

The fourth proportional to 187,705.04, 281,523.54 and 75,380.72 is: 113,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,705.04 : 281,523.54 = 75,380.72 : x
  2. Step 2: Convert to fraction form
    187,705.04/281,523.54 = 75,380.72/x
  3. Step 3: Cross multiply
    187,705.04x = 281,523.54 × 75,380.72
  4. Step 4: Simplify right side
    187,705.04x = 21,221,447,142.15
  5. Step 5: Solve for x
    x = 21,221,447,142.15/187,705.04
  6. Step 6: Final answer
    x = 113,057.42

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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.