Home / 187,972.12-281,760.18-75,732.04

Finding the Fourth Proportional to 187,972.12, 281,760.18 and 75,732.04

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Solution

The fourth proportional to 187,972.12, 281,760.18 and 75,732.04 is: 113,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,972.12 : 281,760.18 = 75,732.04 : x
  2. Step 2: Convert to fraction form
    187,972.12/281,760.18 = 75,732.04/x
  3. Step 3: Cross multiply
    187,972.12x = 281,760.18 × 75,732.04
  4. Step 4: Simplify right side
    187,972.12x = 21,338,273,222.17
  5. Step 5: Solve for x
    x = 21,338,273,222.17/187,972.12
  6. Step 6: Final answer
    x = 113,518.29

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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.