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Finding the Fourth Proportional to 178,047.60, 267,087.60 and 72,844.80

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Solution

The fourth proportional to 178,047.60, 267,087.60 and 72,844.80 is: 109,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,047.60 : 267,087.60 = 72,844.80 : x
  2. Step 2: Convert to fraction form
    178,047.60/267,087.60 = 72,844.80/x
  3. Step 3: Cross multiply
    178,047.60x = 267,087.60 × 72,844.80
  4. Step 4: Simplify right side
    178,047.60x = 19,455,942,804.48
  5. Step 5: Solve for x
    x = 19,455,942,804.48/178,047.60
  6. Step 6: Final answer
    x = 109,273.83

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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.