Home / 129,949.96-179,332.46-76,235.90

Finding the Fourth Proportional to 129,949.96, 179,332.46 and 76,235.90

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Solution

The fourth proportional to 129,949.96, 179,332.46 and 76,235.90 is: 105,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.96 : 179,332.46 = 76,235.90 : x
  2. Step 2: Convert to fraction form
    129,949.96/179,332.46 = 76,235.90/x
  3. Step 3: Cross multiply
    129,949.96x = 179,332.46 × 76,235.90
  4. Step 4: Simplify right side
    129,949.96x = 13,671,571,487.31
  5. Step 5: Solve for x
    x = 13,671,571,487.31/129,949.96
  6. Step 6: Final answer
    x = 105,206.43

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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.