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Finding the Fourth Proportional to 178,792.68, 268,187.40 and 72,174.96

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Solution

The fourth proportional to 178,792.68, 268,187.40 and 72,174.96 is: 108,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,792.68 : 268,187.40 = 72,174.96 : x
  2. Step 2: Convert to fraction form
    178,792.68/268,187.40 = 72,174.96/x
  3. Step 3: Cross multiply
    178,792.68x = 268,187.40 × 72,174.96
  4. Step 4: Simplify right side
    178,792.68x = 19,356,414,867.50
  5. Step 5: Solve for x
    x = 19,356,414,867.50/178,792.68
  6. Step 6: Final answer
    x = 108,261.79

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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.