Home / 129,375.36-194,001.64-45,125.29

Finding the Fourth Proportional to 129,375.36, 194,001.64 and 45,125.29

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Solution

The fourth proportional to 129,375.36, 194,001.64 and 45,125.29 is: 67,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,375.36 : 194,001.64 = 45,125.29 : x
  2. Step 2: Convert to fraction form
    129,375.36/194,001.64 = 45,125.29/x
  3. Step 3: Cross multiply
    129,375.36x = 194,001.64 × 45,125.29
  4. Step 4: Simplify right side
    129,375.36x = 8,754,379,303.91
  5. Step 5: Solve for x
    x = 8,754,379,303.91/129,375.36
  6. Step 6: Final answer
    x = 67,666.51

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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.