Home / 138,934.20-208,401.30-50,158.20

Finding the Fourth Proportional to 138,934.20, 208,401.30 and 50,158.20

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Solution

The fourth proportional to 138,934.20, 208,401.30 and 50,158.20 is: 75,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,934.20 : 208,401.30 = 50,158.20 : x
  2. Step 2: Convert to fraction form
    138,934.20/208,401.30 = 50,158.20/x
  3. Step 3: Cross multiply
    138,934.20x = 208,401.30 × 50,158.20
  4. Step 4: Simplify right side
    138,934.20x = 10,453,034,085.66
  5. Step 5: Solve for x
    x = 10,453,034,085.66/138,934.20
  6. Step 6: Final answer
    x = 75,237.30

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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.