Home / 129,924.24-179,244.81-76,189.38

Finding the Fourth Proportional to 129,924.24, 179,244.81 and 76,189.38

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Solution

The fourth proportional to 129,924.24, 179,244.81 and 76,189.38 is: 105,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,924.24 : 179,244.81 = 76,189.38 : x
  2. Step 2: Convert to fraction form
    129,924.24/179,244.81 = 76,189.38/x
  3. Step 3: Cross multiply
    129,924.24x = 179,244.81 × 76,189.38
  4. Step 4: Simplify right side
    129,924.24x = 13,656,550,942.12
  5. Step 5: Solve for x
    x = 13,656,550,942.12/129,924.24
  6. Step 6: Final answer
    x = 105,111.65

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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.