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Finding the Fourth Proportional to 120,614.01, 166,338.41 and 75,296.21

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Solution

The fourth proportional to 120,614.01, 166,338.41 and 75,296.21 is: 103,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,614.01 : 166,338.41 = 75,296.21 : x
  2. Step 2: Convert to fraction form
    120,614.01/166,338.41 = 75,296.21/x
  3. Step 3: Cross multiply
    120,614.01x = 166,338.41 × 75,296.21
  4. Step 4: Simplify right side
    120,614.01x = 12,524,650,642.25
  5. Step 5: Solve for x
    x = 12,524,650,642.25/120,614.01
  6. Step 6: Final answer
    x = 103,840.76

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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.