Home / 129,733.65-179,033.80-75,297.85

Finding the Fourth Proportional to 129,733.65, 179,033.80 and 75,297.85

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Solution

The fourth proportional to 129,733.65, 179,033.80 and 75,297.85 is: 103,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,733.65 : 179,033.80 = 75,297.85 : x
  2. Step 2: Convert to fraction form
    129,733.65/179,033.80 = 75,297.85/x
  3. Step 3: Cross multiply
    129,733.65x = 179,033.80 × 75,297.85
  4. Step 4: Simplify right side
    129,733.65x = 13,480,861,065.93
  5. Step 5: Solve for x
    x = 13,480,861,065.93/129,733.65
  6. Step 6: Final answer
    x = 103,911.83

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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.