Home / 129,920.16-179,286.40-73,331.16

Finding the Fourth Proportional to 129,920.16, 179,286.40 and 73,331.16

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Solution

The fourth proportional to 129,920.16, 179,286.40 and 73,331.16 is: 101,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,920.16 : 179,286.40 = 73,331.16 : x
  2. Step 2: Convert to fraction form
    129,920.16/179,286.40 = 73,331.16/x
  3. Step 3: Cross multiply
    129,920.16x = 179,286.40 × 73,331.16
  4. Step 4: Simplify right side
    129,920.16x = 13,147,279,684.22
  5. Step 5: Solve for x
    x = 13,147,279,684.22/129,920.16
  6. Step 6: Final answer
    x = 101,195.07

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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.