Home / 178,072.20-267,021.90-99,102.60

Finding the Fourth Proportional to 178,072.20, 267,021.90 and 99,102.60

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Solution

The fourth proportional to 178,072.20, 267,021.90 and 99,102.60 is: 148,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,072.20 : 267,021.90 = 99,102.60 : x
  2. Step 2: Convert to fraction form
    178,072.20/267,021.90 = 99,102.60/x
  3. Step 3: Cross multiply
    178,072.20x = 267,021.90 × 99,102.60
  4. Step 4: Simplify right side
    178,072.20x = 26,462,564,546.94
  5. Step 5: Solve for x
    x = 26,462,564,546.94/178,072.20
  6. Step 6: Final answer
    x = 148,605.82

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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.