Home / 129,726.26-194,507.31-54,807.86

Finding the Fourth Proportional to 129,726.26, 194,507.31 and 54,807.86

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Solution

The fourth proportional to 129,726.26, 194,507.31 and 54,807.86 is: 82,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,726.26 : 194,507.31 = 54,807.86 : x
  2. Step 2: Convert to fraction form
    129,726.26/194,507.31 = 54,807.86/x
  3. Step 3: Cross multiply
    129,726.26x = 194,507.31 × 54,807.86
  4. Step 4: Simplify right side
    129,726.26x = 10,660,529,415.46
  5. Step 5: Solve for x
    x = 10,660,529,415.46/129,726.26
  6. Step 6: Final answer
    x = 82,177.11

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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.