Home / 83,744.20-125,616.30-79,661.80

Finding the Fourth Proportional to 83,744.20, 125,616.30 and 79,661.80

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Solution

The fourth proportional to 83,744.20, 125,616.30 and 79,661.80 is: 119,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,744.20 : 125,616.30 = 79,661.80 : x
  2. Step 2: Convert to fraction form
    83,744.20/125,616.30 = 79,661.80/x
  3. Step 3: Cross multiply
    83,744.20x = 125,616.30 × 79,661.80
  4. Step 4: Simplify right side
    83,744.20x = 10,006,820,567.34
  5. Step 5: Solve for x
    x = 10,006,820,567.34/83,744.20
  6. Step 6: Final answer
    x = 119,492.70

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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.