Home / 129,760.39-179,101.97-73,204.57

Finding the Fourth Proportional to 129,760.39, 179,101.97 and 73,204.57

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Solution

The fourth proportional to 129,760.39, 179,101.97 and 73,204.57 is: 101,040.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.39 : 179,101.97 = 73,204.57 : x
  2. Step 2: Convert to fraction form
    129,760.39/179,101.97 = 73,204.57/x
  3. Step 3: Cross multiply
    129,760.39x = 179,101.97 × 73,204.57
  4. Step 4: Simplify right side
    129,760.39x = 13,111,082,700.00
  5. Step 5: Solve for x
    x = 13,111,082,700.00/129,760.39
  6. Step 6: Final answer
    x = 101,040.72

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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.