Home / 129,713.28-179,004.38-73,124.66

Finding the Fourth Proportional to 129,713.28, 179,004.38 and 73,124.66

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Solution

The fourth proportional to 129,713.28, 179,004.38 and 73,124.66 is: 100,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,713.28 : 179,004.38 = 73,124.66 : x
  2. Step 2: Convert to fraction form
    129,713.28/179,004.38 = 73,124.66/x
  3. Step 3: Cross multiply
    129,713.28x = 179,004.38 × 73,124.66
  4. Step 4: Simplify right side
    129,713.28x = 13,089,633,165.37
  5. Step 5: Solve for x
    x = 13,089,633,165.37/129,713.28
  6. Step 6: Final answer
    x = 100,912.05

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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.