Home / 129,921.16-179,287.78-73,332.16

Finding the Fourth Proportional to 129,921.16, 179,287.78 and 73,332.16

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Solution

The fourth proportional to 129,921.16, 179,287.78 and 73,332.16 is: 101,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,921.16 : 179,287.78 = 73,332.16 : x
  2. Step 2: Convert to fraction form
    129,921.16/179,287.78 = 73,332.16/x
  3. Step 3: Cross multiply
    129,921.16x = 179,287.78 × 73,332.16
  4. Step 4: Simplify right side
    129,921.16x = 13,147,560,169.00
  5. Step 5: Solve for x
    x = 13,147,560,169.00/129,921.16
  6. Step 6: Final answer
    x = 101,196.45

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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.