Home / 178,746.78-268,233.18-99,912.72

Finding the Fourth Proportional to 178,746.78, 268,233.18 and 99,912.72

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Solution

The fourth proportional to 178,746.78, 268,233.18 and 99,912.72 is: 149,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,746.78 : 268,233.18 = 99,912.72 : x
  2. Step 2: Convert to fraction form
    178,746.78/268,233.18 = 99,912.72/x
  3. Step 3: Cross multiply
    178,746.78x = 268,233.18 × 99,912.72
  4. Step 4: Simplify right side
    178,746.78x = 26,799,906,608.05
  5. Step 5: Solve for x
    x = 26,799,906,608.05/178,746.78
  6. Step 6: Final answer
    x = 149,932.25

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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.