Home / 129,943.65-179,323.59-76,229.58

Finding the Fourth Proportional to 129,943.65, 179,323.59 and 76,229.58

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Solution

The fourth proportional to 129,943.65, 179,323.59 and 76,229.58 is: 105,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,943.65 : 179,323.59 = 76,229.58 : x
  2. Step 2: Convert to fraction form
    129,943.65/179,323.59 = 76,229.58/x
  3. Step 3: Cross multiply
    129,943.65x = 179,323.59 × 76,229.58
  4. Step 4: Simplify right side
    129,943.65x = 13,669,761,949.79
  5. Step 5: Solve for x
    x = 13,669,761,949.79/129,943.65
  6. Step 6: Final answer
    x = 105,197.61

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1.5x scale

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.