Home / 83,206.20-124,809.30-80,095.80

Finding the Fourth Proportional to 83,206.20, 124,809.30 and 80,095.80

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Solution

The fourth proportional to 83,206.20, 124,809.30 and 80,095.80 is: 120,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,206.20 : 124,809.30 = 80,095.80 : x
  2. Step 2: Convert to fraction form
    83,206.20/124,809.30 = 80,095.80/x
  3. Step 3: Cross multiply
    83,206.20x = 124,809.30 × 80,095.80
  4. Step 4: Simplify right side
    83,206.20x = 9,996,700,730.94
  5. Step 5: Solve for x
    x = 9,996,700,730.94/83,206.20
  6. Step 6: Final answer
    x = 120,143.70

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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.