Home / 129,614.80-194,422.20-54,681.04

Finding the Fourth Proportional to 129,614.80, 194,422.20 and 54,681.04

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Solution

The fourth proportional to 129,614.80, 194,422.20 and 54,681.04 is: 82,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,614.80 : 194,422.20 = 54,681.04 : x
  2. Step 2: Convert to fraction form
    129,614.80/194,422.20 = 54,681.04/x
  3. Step 3: Cross multiply
    129,614.80x = 194,422.20 × 54,681.04
  4. Step 4: Simplify right side
    129,614.80x = 10,631,208,095.09
  5. Step 5: Solve for x
    x = 10,631,208,095.09/129,614.80
  6. Step 6: Final answer
    x = 82,021.56

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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.