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Finding the Fourth Proportional to 101,651.56, 140,286.54 and 61,375.12

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Solution

The fourth proportional to 101,651.56, 140,286.54 and 61,375.12 is: 84,702.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,651.56 : 140,286.54 = 61,375.12 : x
  2. Step 2: Convert to fraction form
    101,651.56/140,286.54 = 61,375.12/x
  3. Step 3: Cross multiply
    101,651.56x = 140,286.54 × 61,375.12
  4. Step 4: Simplify right side
    101,651.56x = 8,610,103,226.88
  5. Step 5: Solve for x
    x = 8,610,103,226.88/101,651.56
  6. Step 6: Final answer
    x = 84,702.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.