Home / 129,956.40-194,934.60-59,972.40

Finding the Fourth Proportional to 129,956.40, 194,934.60 and 59,972.40

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Solution

The fourth proportional to 129,956.40, 194,934.60 and 59,972.40 is: 89,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,956.40 : 194,934.60 = 59,972.40 : x
  2. Step 2: Convert to fraction form
    129,956.40/194,934.60 = 59,972.40/x
  3. Step 3: Cross multiply
    129,956.40x = 194,934.60 × 59,972.40
  4. Step 4: Simplify right side
    129,956.40x = 11,690,695,805.04
  5. Step 5: Solve for x
    x = 11,690,695,805.04/129,956.40
  6. Step 6: Final answer
    x = 89,958.60

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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.