Home / 124,084.20-185,921.10-71,401.80

Finding the Fourth Proportional to 124,084.20, 185,921.10 and 71,401.80

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Solution

The fourth proportional to 124,084.20, 185,921.10 and 71,401.80 is: 106,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,084.20 : 185,921.10 = 71,401.80 : x
  2. Step 2: Convert to fraction form
    124,084.20/185,921.10 = 71,401.80/x
  3. Step 3: Cross multiply
    124,084.20x = 185,921.10 × 71,401.80
  4. Step 4: Simplify right side
    124,084.20x = 13,275,101,197.98
  5. Step 5: Solve for x
    x = 13,275,101,197.98/124,084.20
  6. Step 6: Final answer
    x = 106,984.62

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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.