Home / 99,734.85-149,601.06-28,659.15

Finding the Fourth Proportional to 99,734.85, 149,601.06 and 28,659.15

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Solution

The fourth proportional to 99,734.85, 149,601.06 and 28,659.15 is: 42,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.85 : 149,601.06 = 28,659.15 : x
  2. Step 2: Convert to fraction form
    99,734.85/149,601.06 = 28,659.15/x
  3. Step 3: Cross multiply
    99,734.85x = 149,601.06 × 28,659.15
  4. Step 4: Simplify right side
    99,734.85x = 4,287,439,218.70
  5. Step 5: Solve for x
    x = 4,287,439,218.70/99,734.85
  6. Step 6: Final answer
    x = 42,988.38

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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.