Home / 91,996.20-137,994.30-80,332.20

Finding the Fourth Proportional to 91,996.20, 137,994.30 and 80,332.20

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Solution

The fourth proportional to 91,996.20, 137,994.30 and 80,332.20 is: 120,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,996.20 : 137,994.30 = 80,332.20 : x
  2. Step 2: Convert to fraction form
    91,996.20/137,994.30 = 80,332.20/x
  3. Step 3: Cross multiply
    91,996.20x = 137,994.30 × 80,332.20
  4. Step 4: Simplify right side
    91,996.20x = 11,085,385,706.46
  5. Step 5: Solve for x
    x = 11,085,385,706.46/91,996.20
  6. Step 6: Final answer
    x = 120,498.30

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1.5x scale

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.