Home / 129,519.90-194,328.45-50,690.70

Finding the Fourth Proportional to 129,519.90, 194,328.45 and 50,690.70

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Solution

The fourth proportional to 129,519.90, 194,328.45 and 50,690.70 is: 76,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,519.90 : 194,328.45 = 50,690.70 : x
  2. Step 2: Convert to fraction form
    129,519.90/194,328.45 = 50,690.70/x
  3. Step 3: Cross multiply
    129,519.90x = 194,328.45 × 50,690.70
  4. Step 4: Simplify right side
    129,519.90x = 9,850,645,160.42
  5. Step 5: Solve for x
    x = 9,850,645,160.42/129,519.90
  6. Step 6: Final answer
    x = 76,055.07

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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.