Home / 120,629.54-166,359.77-75,311.66

Finding the Fourth Proportional to 120,629.54, 166,359.77 and 75,311.66

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Solution

The fourth proportional to 120,629.54, 166,359.77 and 75,311.66 is: 103,862.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629.54 : 166,359.77 = 75,311.66 : x
  2. Step 2: Convert to fraction form
    120,629.54/166,359.77 = 75,311.66/x
  3. Step 3: Cross multiply
    120,629.54x = 166,359.77 × 75,311.66
  4. Step 4: Simplify right side
    120,629.54x = 12,528,829,227.56
  5. Step 5: Solve for x
    x = 12,528,829,227.56/120,629.54
  6. Step 6: Final answer
    x = 103,862.04

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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.