Home / 129,952.09-179,335.38-76,238.02

Finding the Fourth Proportional to 129,952.09, 179,335.38 and 76,238.02

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Solution

The fourth proportional to 129,952.09, 179,335.38 and 76,238.02 is: 105,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952.09 : 179,335.38 = 76,238.02 : x
  2. Step 2: Convert to fraction form
    129,952.09/179,335.38 = 76,238.02/x
  3. Step 3: Cross multiply
    129,952.09x = 179,335.38 × 76,238.02
  4. Step 4: Simplify right side
    129,952.09x = 13,672,174,287.15
  5. Step 5: Solve for x
    x = 13,672,174,287.15/129,952.09
  6. Step 6: Final answer
    x = 105,209.35

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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.