Home / 129,418.72-194,160.27-102,864.89

Finding the Fourth Proportional to 129,418.72, 194,160.27 and 102,864.89

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Solution

The fourth proportional to 129,418.72, 194,160.27 and 102,864.89 is: 154,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,418.72 : 194,160.27 = 102,864.89 : x
  2. Step 2: Convert to fraction form
    129,418.72/194,160.27 = 102,864.89/x
  3. Step 3: Cross multiply
    129,418.72x = 194,160.27 × 102,864.89
  4. Step 4: Simplify right side
    129,418.72x = 19,972,275,687.06
  5. Step 5: Solve for x
    x = 19,972,275,687.06/129,418.72
  6. Step 6: Final answer
    x = 154,322.93

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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.