Home / 140,379.62-193,726.49-76,716.05

Finding the Fourth Proportional to 140,379.62, 193,726.49 and 76,716.05

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Solution

The fourth proportional to 140,379.62, 193,726.49 and 76,716.05 is: 105,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,379.62 : 193,726.49 = 76,716.05 : x
  2. Step 2: Convert to fraction form
    140,379.62/193,726.49 = 76,716.05/x
  3. Step 3: Cross multiply
    140,379.62x = 193,726.49 × 76,716.05
  4. Step 4: Simplify right side
    140,379.62x = 14,861,929,740.95
  5. Step 5: Solve for x
    x = 14,861,929,740.95/140,379.62
  6. Step 6: Final answer
    x = 105,869.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.