Home / 129,952.16-179,335.47-76,238.09

Finding the Fourth Proportional to 129,952.16, 179,335.47 and 76,238.09

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Solution

The fourth proportional to 129,952.16, 179,335.47 and 76,238.09 is: 105,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952.16 : 179,335.47 = 76,238.09 : x
  2. Step 2: Convert to fraction form
    129,952.16/179,335.47 = 76,238.09/x
  3. Step 3: Cross multiply
    129,952.16x = 179,335.47 × 76,238.09
  4. Step 4: Simplify right side
    129,952.16x = 13,672,192,805.38
  5. Step 5: Solve for x
    x = 13,672,192,805.38/129,952.16
  6. Step 6: Final answer
    x = 105,209.44

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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.