Home / 178,832.43-268,073.69-85,403.79

Finding the Fourth Proportional to 178,832.43, 268,073.69 and 85,403.79

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Solution

The fourth proportional to 178,832.43, 268,073.69 and 85,403.79 is: 128,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,832.43 : 268,073.69 = 85,403.79 : x
  2. Step 2: Convert to fraction form
    178,832.43/268,073.69 = 85,403.79/x
  3. Step 3: Cross multiply
    178,832.43x = 268,073.69 × 85,403.79
  4. Step 4: Simplify right side
    178,832.43x = 22,894,508,698.27
  5. Step 5: Solve for x
    x = 22,894,508,698.27/178,832.43
  6. Step 6: Final answer
    x = 128,022.13

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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.