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Finding the Fourth Proportional to 99,734.40, 149,160.96 and 88,718.40

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Solution

The fourth proportional to 99,734.40, 149,160.96 and 88,718.40 is: 132,685.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.40 : 149,160.96 = 88,718.40 : x
  2. Step 2: Convert to fraction form
    99,734.40/149,160.96 = 88,718.40/x
  3. Step 3: Cross multiply
    99,734.40x = 149,160.96 × 88,718.40
  4. Step 4: Simplify right side
    99,734.40x = 13,233,321,713.66
  5. Step 5: Solve for x
    x = 13,233,321,713.66/99,734.40
  6. Step 6: Final answer
    x = 132,685.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.