Home / 268,528.92-402,767.22-81,542.04

Finding the Fourth Proportional to 268,528.92, 402,767.22 and 81,542.04

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Solution

The fourth proportional to 268,528.92, 402,767.22 and 81,542.04 is: 122,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,528.92 : 402,767.22 = 81,542.04 : x
  2. Step 2: Convert to fraction form
    268,528.92/402,767.22 = 81,542.04/x
  3. Step 3: Cross multiply
    268,528.92x = 402,767.22 × 81,542.04
  4. Step 4: Simplify right side
    268,528.92x = 32,842,460,763.93
  5. Step 5: Solve for x
    x = 32,842,460,763.93/268,528.92
  6. Step 6: Final answer
    x = 122,305.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.