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Finding the Fourth Proportional to 136,753.50, 188,727.12 and 80,183.10

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Solution

The fourth proportional to 136,753.50, 188,727.12 and 80,183.10 is: 110,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,753.50 : 188,727.12 = 80,183.10 : x
  2. Step 2: Convert to fraction form
    136,753.50/188,727.12 = 80,183.10/x
  3. Step 3: Cross multiply
    136,753.50x = 188,727.12 × 80,183.10
  4. Step 4: Simplify right side
    136,753.50x = 15,132,725,535.67
  5. Step 5: Solve for x
    x = 15,132,725,535.67/136,753.50
  6. Step 6: Final answer
    x = 110,656.95

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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.