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Finding the Fourth Proportional to 101,626.88, 140,310.91 and 65,344.62

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Solution

The fourth proportional to 101,626.88, 140,310.91 and 65,344.62 is: 90,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,626.88 : 140,310.91 = 65,344.62 : x
  2. Step 2: Convert to fraction form
    101,626.88/140,310.91 = 65,344.62/x
  3. Step 3: Cross multiply
    101,626.88x = 140,310.91 × 65,344.62
  4. Step 4: Simplify right side
    101,626.88x = 9,168,563,519.87
  5. Step 5: Solve for x
    x = 9,168,563,519.87/101,626.88
  6. Step 6: Final answer
    x = 90,217.90

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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.