Home / 99,799.20-149,568.80-40,565.68

Finding the Fourth Proportional to 99,799.20, 149,568.80 and 40,565.68

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Solution

The fourth proportional to 99,799.20, 149,568.80 and 40,565.68 is: 60,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,799.20 : 149,568.80 = 40,565.68 : x
  2. Step 2: Convert to fraction form
    99,799.20/149,568.80 = 40,565.68/x
  3. Step 3: Cross multiply
    99,799.20x = 149,568.80 × 40,565.68
  4. Step 4: Simplify right side
    99,799.20x = 6,067,360,078.78
  5. Step 5: Solve for x
    x = 6,067,360,078.78/99,799.20
  6. Step 6: Final answer
    x = 60,795.68

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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.