Home / 129,947.58-179,326.17-76,222.26

Finding the Fourth Proportional to 129,947.58, 179,326.17 and 76,222.26

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Solution

The fourth proportional to 129,947.58, 179,326.17 and 76,222.26 is: 105,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.58 : 179,326.17 = 76,222.26 : x
  2. Step 2: Convert to fraction form
    129,947.58/179,326.17 = 76,222.26/x
  3. Step 3: Cross multiply
    129,947.58x = 179,326.17 × 76,222.26
  4. Step 4: Simplify right side
    129,947.58x = 13,668,645,954.54
  5. Step 5: Solve for x
    x = 13,668,645,954.54/129,947.58
  6. Step 6: Final answer
    x = 105,185.84

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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.