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Finding the Fourth Proportional to 159,681.20, 220,350.01 and 91,650.32

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Solution

The fourth proportional to 159,681.20, 220,350.01 and 91,650.32 is: 126,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,681.20 : 220,350.01 = 91,650.32 : x
  2. Step 2: Convert to fraction form
    159,681.20/220,350.01 = 91,650.32/x
  3. Step 3: Cross multiply
    159,681.20x = 220,350.01 × 91,650.32
  4. Step 4: Simplify right side
    159,681.20x = 20,195,148,928.50
  5. Step 5: Solve for x
    x = 20,195,148,928.50/159,681.20
  6. Step 6: Final answer
    x = 126,471.68

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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.