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Finding the Fourth Proportional to 178,203.80, 267,564.90 and 134,139.80

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Solution

The fourth proportional to 178,203.80, 267,564.90 and 134,139.80 is: 201,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,203.80 : 267,564.90 = 134,139.80 : x
  2. Step 2: Convert to fraction form
    178,203.80/267,564.90 = 134,139.80/x
  3. Step 3: Cross multiply
    178,203.80x = 267,564.90 × 134,139.80
  4. Step 4: Simplify right side
    178,203.80x = 35,891,102,173.02
  5. Step 5: Solve for x
    x = 35,891,102,173.02/178,203.80
  6. Step 6: Final answer
    x = 201,404.81

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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.