Home / 121,947.92-168,288.78-68,233.04

Finding the Fourth Proportional to 121,947.92, 168,288.78 and 68,233.04

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Solution

The fourth proportional to 121,947.92, 168,288.78 and 68,233.04 is: 94,161.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,947.92 : 168,288.78 = 68,233.04 : x
  2. Step 2: Convert to fraction form
    121,947.92/168,288.78 = 68,233.04/x
  3. Step 3: Cross multiply
    121,947.92x = 168,288.78 × 68,233.04
  4. Step 4: Simplify right side
    121,947.92x = 11,482,855,057.29
  5. Step 5: Solve for x
    x = 11,482,855,057.29/121,947.92
  6. Step 6: Final answer
    x = 94,161.96

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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.