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Finding the Fourth Proportional to 159,772.44, 220,478.58 and 88,140.90

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Solution

The fourth proportional to 159,772.44, 220,478.58 and 88,140.90 is: 121,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,772.44 : 220,478.58 = 88,140.90 : x
  2. Step 2: Convert to fraction form
    159,772.44/220,478.58 = 88,140.90/x
  3. Step 3: Cross multiply
    159,772.44x = 220,478.58 × 88,140.90
  4. Step 4: Simplify right side
    159,772.44x = 19,433,180,471.92
  5. Step 5: Solve for x
    x = 19,433,180,471.92/159,772.44
  6. Step 6: Final answer
    x = 121,630.37

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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.