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Finding the Fourth Proportional to 101,614.26, 140,136.30 and 65,766.90

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Solution

The fourth proportional to 101,614.26, 140,136.30 and 65,766.90 is: 90,699.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,614.26 : 140,136.30 = 65,766.90 : x
  2. Step 2: Convert to fraction form
    101,614.26/140,136.30 = 65,766.90/x
  3. Step 3: Cross multiply
    101,614.26x = 140,136.30 × 65,766.90
  4. Step 4: Simplify right side
    101,614.26x = 9,216,330,028.47
  5. Step 5: Solve for x
    x = 9,216,330,028.47/101,614.26
  6. Step 6: Final answer
    x = 90,699.18

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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.