Home / 187,722.11-281,561.28-75,397.79

Finding the Fourth Proportional to 187,722.11, 281,561.28 and 75,397.79

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Solution

The fourth proportional to 187,722.11, 281,561.28 and 75,397.79 is: 113,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,722.11 : 281,561.28 = 75,397.79 : x
  2. Step 2: Convert to fraction form
    187,722.11/281,561.28 = 75,397.79/x
  3. Step 3: Cross multiply
    187,722.11x = 281,561.28 × 75,397.79
  4. Step 4: Simplify right side
    187,722.11x = 21,229,096,853.76
  5. Step 5: Solve for x
    x = 21,229,096,853.76/187,722.11
  6. Step 6: Final answer
    x = 113,087.89

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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.