Home / 129,940.12-194,776.26-49,956.40

Finding the Fourth Proportional to 129,940.12, 194,776.26 and 49,956.40

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Solution

The fourth proportional to 129,940.12, 194,776.26 and 49,956.40 is: 74,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,940.12 : 194,776.26 = 49,956.40 : x
  2. Step 2: Convert to fraction form
    129,940.12/194,776.26 = 49,956.40/x
  3. Step 3: Cross multiply
    129,940.12x = 194,776.26 × 49,956.40
  4. Step 4: Simplify right side
    129,940.12x = 9,730,320,755.06
  5. Step 5: Solve for x
    x = 9,730,320,755.06/129,940.12
  6. Step 6: Final answer
    x = 74,883.11

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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.