Home / 129,741.39-179,043.15-73,152.78

Finding the Fourth Proportional to 129,741.39, 179,043.15 and 73,152.78

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Solution

The fourth proportional to 129,741.39, 179,043.15 and 73,152.78 is: 100,950.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.39 : 179,043.15 = 73,152.78 : x
  2. Step 2: Convert to fraction form
    129,741.39/179,043.15 = 73,152.78/x
  3. Step 3: Cross multiply
    129,741.39x = 179,043.15 × 73,152.78
  4. Step 4: Simplify right side
    129,741.39x = 13,097,504,162.46
  5. Step 5: Solve for x
    x = 13,097,504,162.46/129,741.39
  6. Step 6: Final answer
    x = 100,950.85

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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.