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Finding the Fourth Proportional to 80,191.50, 110,536.77 and 63,168.81

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Solution

The fourth proportional to 80,191.50, 110,536.77 and 63,168.81 is: 87,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,191.50 : 110,536.77 = 63,168.81 : x
  2. Step 2: Convert to fraction form
    80,191.50/110,536.77 = 63,168.81/x
  3. Step 3: Cross multiply
    80,191.50x = 110,536.77 × 63,168.81
  4. Step 4: Simplify right side
    80,191.50x = 6,982,476,222.14
  5. Step 5: Solve for x
    x = 6,982,476,222.14/80,191.50
  6. Step 6: Final answer
    x = 87,072.52

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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.