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Finding the Fourth Proportional to 159,651.68, 220,334.10 and 91,677.56

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Solution

The fourth proportional to 159,651.68, 220,334.10 and 91,677.56 is: 126,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.68 : 220,334.10 = 91,677.56 : x
  2. Step 2: Convert to fraction form
    159,651.68/220,334.10 = 91,677.56/x
  3. Step 3: Cross multiply
    159,651.68x = 220,334.10 × 91,677.56
  4. Step 4: Simplify right side
    159,651.68x = 20,199,692,672.80
  5. Step 5: Solve for x
    x = 20,199,692,672.80/159,651.68
  6. Step 6: Final answer
    x = 126,523.52

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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.