Home / 129,952.48-179,335.90-76,238.42

Finding the Fourth Proportional to 129,952.48, 179,335.90 and 76,238.42

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Solution

The fourth proportional to 129,952.48, 179,335.90 and 76,238.42 is: 105,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952.48 : 179,335.90 = 76,238.42 : x
  2. Step 2: Convert to fraction form
    129,952.48/179,335.90 = 76,238.42/x
  3. Step 3: Cross multiply
    129,952.48x = 179,335.90 × 76,238.42
  4. Step 4: Simplify right side
    129,952.48x = 13,672,285,665.28
  5. Step 5: Solve for x
    x = 13,672,285,665.28/129,952.48
  6. Step 6: Final answer
    x = 105,209.89

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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.