Home / 129,936.92-179,301.06-76,212.05

Finding the Fourth Proportional to 129,936.92, 179,301.06 and 76,212.05

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Solution

The fourth proportional to 129,936.92, 179,301.06 and 76,212.05 is: 105,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,936.92 : 179,301.06 = 76,212.05 : x
  2. Step 2: Convert to fraction form
    129,936.92/179,301.06 = 76,212.05/x
  3. Step 3: Cross multiply
    129,936.92x = 179,301.06 × 76,212.05
  4. Step 4: Simplify right side
    129,936.92x = 13,664,900,453.27
  5. Step 5: Solve for x
    x = 13,664,900,453.27/129,936.92
  6. Step 6: Final answer
    x = 105,165.65

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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.