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Finding the Fourth Proportional to 80,393.34, 120,004.49 and 74,464.14

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Solution

The fourth proportional to 80,393.34, 120,004.49 and 74,464.14 is: 111,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,393.34 : 120,004.49 = 74,464.14 : x
  2. Step 2: Convert to fraction form
    80,393.34/120,004.49 = 74,464.14/x
  3. Step 3: Cross multiply
    80,393.34x = 120,004.49 × 74,464.14
  4. Step 4: Simplify right side
    80,393.34x = 8,936,031,143.99
  5. Step 5: Solve for x
    x = 8,936,031,143.99/80,393.34
  6. Step 6: Final answer
    x = 111,153.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.