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Finding the Fourth Proportional to 159,915.87, 220,685.31 and 88,301.34

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Solution

The fourth proportional to 159,915.87, 220,685.31 and 88,301.34 is: 121,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,915.87 : 220,685.31 = 88,301.34 : x
  2. Step 2: Convert to fraction form
    159,915.87/220,685.31 = 88,301.34/x
  3. Step 3: Cross multiply
    159,915.87x = 220,685.31 × 88,301.34
  4. Step 4: Simplify right side
    159,915.87x = 19,486,808,591.32
  5. Step 5: Solve for x
    x = 19,486,808,591.32/159,915.87
  6. Step 6: Final answer
    x = 121,856.63

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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.