Home / 129,575.90-194,391.53-45,338.82

Finding the Fourth Proportional to 129,575.90, 194,391.53 and 45,338.82

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Solution

The fourth proportional to 129,575.90, 194,391.53 and 45,338.82 is: 68,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,575.90 : 194,391.53 = 45,338.82 : x
  2. Step 2: Convert to fraction form
    129,575.90/194,391.53 = 45,338.82/x
  3. Step 3: Cross multiply
    129,575.90x = 194,391.53 × 45,338.82
  4. Step 4: Simplify right side
    129,575.90x = 8,813,481,802.55
  5. Step 5: Solve for x
    x = 8,813,481,802.55/129,575.90
  6. Step 6: Final answer
    x = 68,017.91

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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.