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Finding the Fourth Proportional to 101,253.40, 151,880.10 and 71,704.60

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Solution

The fourth proportional to 101,253.40, 151,880.10 and 71,704.60 is: 107,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,253.40 : 151,880.10 = 71,704.60 : x
  2. Step 2: Convert to fraction form
    101,253.40/151,880.10 = 71,704.60/x
  3. Step 3: Cross multiply
    101,253.40x = 151,880.10 × 71,704.60
  4. Step 4: Simplify right side
    101,253.40x = 10,890,501,818.46
  5. Step 5: Solve for x
    x = 10,890,501,818.46/101,253.40
  6. Step 6: Final answer
    x = 107,556.90

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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.