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Finding the Fourth Proportional to 100,023.80, 150,035.70 and 82,743.80

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Solution

The fourth proportional to 100,023.80, 150,035.70 and 82,743.80 is: 124,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,023.80 : 150,035.70 = 82,743.80 : x
  2. Step 2: Convert to fraction form
    100,023.80/150,035.70 = 82,743.80/x
  3. Step 3: Cross multiply
    100,023.80x = 150,035.70 × 82,743.80
  4. Step 4: Simplify right side
    100,023.80x = 12,414,523,953.66
  5. Step 5: Solve for x
    x = 12,414,523,953.66/100,023.80
  6. Step 6: Final answer
    x = 124,115.70

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1.5x scale

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.