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Finding the Fourth Proportional to 178,090.76, 267,186.09 and 71,549.54

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Solution

The fourth proportional to 178,090.76, 267,186.09 and 71,549.54 is: 107,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,090.76 : 267,186.09 = 71,549.54 : x
  2. Step 2: Convert to fraction form
    178,090.76/267,186.09 = 71,549.54/x
  3. Step 3: Cross multiply
    178,090.76x = 267,186.09 × 71,549.54
  4. Step 4: Simplify right side
    178,090.76x = 19,117,040,319.09
  5. Step 5: Solve for x
    x = 19,117,040,319.09/178,090.76
  6. Step 6: Final answer
    x = 107,344.37

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1.5x scale

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.