Home / 120,748.31-166,633.25-75,452.60

Finding the Fourth Proportional to 120,748.31, 166,633.25 and 75,452.60

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Solution

The fourth proportional to 120,748.31, 166,633.25 and 75,452.60 is: 104,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,748.31 : 166,633.25 = 75,452.60 : x
  2. Step 2: Convert to fraction form
    120,748.31/166,633.25 = 75,452.60/x
  3. Step 3: Cross multiply
    120,748.31x = 166,633.25 × 75,452.60
  4. Step 4: Simplify right side
    120,748.31x = 12,572,910,748.52
  5. Step 5: Solve for x
    x = 12,572,910,748.52/120,748.31
  6. Step 6: Final answer
    x = 104,124.95

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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.