Home / 129,610.13-194,491.73-54,725.42

Finding the Fourth Proportional to 129,610.13, 194,491.73 and 54,725.42

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Solution

The fourth proportional to 129,610.13, 194,491.73 and 54,725.42 is: 82,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,610.13 : 194,491.73 = 54,725.42 : x
  2. Step 2: Convert to fraction form
    129,610.13/194,491.73 = 54,725.42/x
  3. Step 3: Cross multiply
    129,610.13x = 194,491.73 × 54,725.42
  4. Step 4: Simplify right side
    129,610.13x = 10,643,642,233.82
  5. Step 5: Solve for x
    x = 10,643,642,233.82/129,610.13
  6. Step 6: Final answer
    x = 82,120.45

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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.