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Finding the Fourth Proportional to 80,198.61, 110,670.12 and 45,744.69

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Solution

The fourth proportional to 80,198.61, 110,670.12 and 45,744.69 is: 63,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,198.61 : 110,670.12 = 45,744.69 : x
  2. Step 2: Convert to fraction form
    80,198.61/110,670.12 = 45,744.69/x
  3. Step 3: Cross multiply
    80,198.61x = 110,670.12 × 45,744.69
  4. Step 4: Simplify right side
    80,198.61x = 5,062,570,331.66
  5. Step 5: Solve for x
    x = 5,062,570,331.66/80,198.61
  6. Step 6: Final answer
    x = 63,125.41

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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.