Home / 91,081.43-136,337.84-67,092.77

Finding the Fourth Proportional to 91,081.43, 136,337.84 and 67,092.77

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Solution

The fourth proportional to 91,081.43, 136,337.84 and 67,092.77 is: 100,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.43 : 136,337.84 = 67,092.77 : x
  2. Step 2: Convert to fraction form
    91,081.43/136,337.84 = 67,092.77/x
  3. Step 3: Cross multiply
    91,081.43x = 136,337.84 × 67,092.77
  4. Step 4: Simplify right side
    91,081.43x = 9,147,283,346.80
  5. Step 5: Solve for x
    x = 9,147,283,346.80/91,081.43
  6. Step 6: Final answer
    x = 100,429.73

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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.