Home / 99,939.11-149,834.52-60,486.84

Finding the Fourth Proportional to 99,939.11, 149,834.52 and 60,486.84

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Solution

The fourth proportional to 99,939.11, 149,834.52 and 60,486.84 is: 90,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,939.11 : 149,834.52 = 60,486.84 : x
  2. Step 2: Convert to fraction form
    99,939.11/149,834.52 = 60,486.84/x
  3. Step 3: Cross multiply
    99,939.11x = 149,834.52 × 60,486.84
  4. Step 4: Simplify right side
    99,939.11x = 9,063,016,637.72
  5. Step 5: Solve for x
    x = 9,063,016,637.72/99,939.11
  6. Step 6: Final answer
    x = 90,685.39

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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.