Home / 178,784.20-268,234.56-85,277.80

Finding the Fourth Proportional to 178,784.20, 268,234.56 and 85,277.80

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Solution

The fourth proportional to 178,784.20, 268,234.56 and 85,277.80 is: 127,944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,784.20 : 268,234.56 = 85,277.80 : x
  2. Step 2: Convert to fraction form
    178,784.20/268,234.56 = 85,277.80/x
  3. Step 3: Cross multiply
    178,784.20x = 268,234.56 × 85,277.80
  4. Step 4: Simplify right side
    178,784.20x = 22,874,453,160.77
  5. Step 5: Solve for x
    x = 22,874,453,160.77/178,784.20
  6. Step 6: Final answer
    x = 127,944.49

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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.