Home / 109,793.04-151,517.84-71,577.20

Finding the Fourth Proportional to 109,793.04, 151,517.84 and 71,577.20

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Solution

The fourth proportional to 109,793.04, 151,517.84 and 71,577.20 is: 98,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,793.04 : 151,517.84 = 71,577.20 : x
  2. Step 2: Convert to fraction form
    109,793.04/151,517.84 = 71,577.20/x
  3. Step 3: Cross multiply
    109,793.04x = 151,517.84 × 71,577.20
  4. Step 4: Simplify right side
    109,793.04x = 10,845,222,737.25
  5. Step 5: Solve for x
    x = 10,845,222,737.25/109,793.04
  6. Step 6: Final answer
    x = 98,778.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.