Home / 129,739.27-179,040.23-73,150.65

Finding the Fourth Proportional to 129,739.27, 179,040.23 and 73,150.65

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Solution

The fourth proportional to 129,739.27, 179,040.23 and 73,150.65 is: 100,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,739.27 : 179,040.23 = 73,150.65 : x
  2. Step 2: Convert to fraction form
    129,739.27/179,040.23 = 73,150.65/x
  3. Step 3: Cross multiply
    129,739.27x = 179,040.23 × 73,150.65
  4. Step 4: Simplify right side
    129,739.27x = 13,096,909,200.65
  5. Step 5: Solve for x
    x = 13,096,909,200.65/129,739.27
  6. Step 6: Final answer
    x = 100,947.92

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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.