Home / 129,676.38-179,013.16-91,467.06

Finding the Fourth Proportional to 129,676.38, 179,013.16 and 91,467.06

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Solution

The fourth proportional to 129,676.38, 179,013.16 and 91,467.06 is: 126,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,676.38 : 179,013.16 = 91,467.06 : x
  2. Step 2: Convert to fraction form
    129,676.38/179,013.16 = 91,467.06/x
  3. Step 3: Cross multiply
    129,676.38x = 179,013.16 × 91,467.06
  4. Step 4: Simplify right side
    129,676.38x = 16,373,807,446.51
  5. Step 5: Solve for x
    x = 16,373,807,446.51/129,676.38
  6. Step 6: Final answer
    x = 126,266.69

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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.