Home / 192,578.13-288,868.05-126,436.77

Finding the Fourth Proportional to 192,578.13, 288,868.05 and 126,436.77

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Solution

The fourth proportional to 192,578.13, 288,868.05 and 126,436.77 is: 189,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,578.13 : 288,868.05 = 126,436.77 : x
  2. Step 2: Convert to fraction form
    192,578.13/288,868.05 = 126,436.77/x
  3. Step 3: Cross multiply
    192,578.13x = 288,868.05 × 126,436.77
  4. Step 4: Simplify right side
    192,578.13x = 36,523,543,198.20
  5. Step 5: Solve for x
    x = 36,523,543,198.20/192,578.13
  6. Step 6: Final answer
    x = 189,655.72

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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.