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Finding the Fourth Proportional to 80,224.32, 120,348.36 and 75,303.84

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Solution

The fourth proportional to 80,224.32, 120,348.36 and 75,303.84 is: 112,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,224.32 : 120,348.36 = 75,303.84 : x
  2. Step 2: Convert to fraction form
    80,224.32/120,348.36 = 75,303.84/x
  3. Step 3: Cross multiply
    80,224.32x = 120,348.36 × 75,303.84
  4. Step 4: Simplify right side
    80,224.32x = 9,062,693,645.70
  5. Step 5: Solve for x
    x = 9,062,693,645.70/80,224.32
  6. Step 6: Final answer
    x = 112,966.91

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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.