Home / 129,987.46-179,359.23-75,542.08

Finding the Fourth Proportional to 129,987.46, 179,359.23 and 75,542.08

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Solution

The fourth proportional to 129,987.46, 179,359.23 and 75,542.08 is: 104,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,987.46 : 179,359.23 = 75,542.08 : x
  2. Step 2: Convert to fraction form
    129,987.46/179,359.23 = 75,542.08/x
  3. Step 3: Cross multiply
    129,987.46x = 179,359.23 × 75,542.08
  4. Step 4: Simplify right side
    129,987.46x = 13,549,169,301.40
  5. Step 5: Solve for x
    x = 13,549,169,301.40/129,987.46
  6. Step 6: Final answer
    x = 104,234.43

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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.