Home / 99,772.80-149,659.20-98,132.55

Finding the Fourth Proportional to 99,772.80, 149,659.20 and 98,132.55

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Solution

The fourth proportional to 99,772.80, 149,659.20 and 98,132.55 is: 147,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,772.80 : 149,659.20 = 98,132.55 : x
  2. Step 2: Convert to fraction form
    99,772.80/149,659.20 = 98,132.55/x
  3. Step 3: Cross multiply
    99,772.80x = 149,659.20 × 98,132.55
  4. Step 4: Simplify right side
    99,772.80x = 14,686,438,926.96
  5. Step 5: Solve for x
    x = 14,686,438,926.96/99,772.80
  6. Step 6: Final answer
    x = 147,198.83

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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.