Home / 120,731.46-166,610.06-75,435.71

Finding the Fourth Proportional to 120,731.46, 166,610.06 and 75,435.71

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Solution

The fourth proportional to 120,731.46, 166,610.06 and 75,435.71 is: 104,101.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,731.46 : 166,610.06 = 75,435.71 : x
  2. Step 2: Convert to fraction form
    120,731.46/166,610.06 = 75,435.71/x
  3. Step 3: Cross multiply
    120,731.46x = 166,610.06 × 75,435.71
  4. Step 4: Simplify right side
    120,731.46x = 12,568,348,208.59
  5. Step 5: Solve for x
    x = 12,568,348,208.59/120,731.46
  6. Step 6: Final answer
    x = 104,101.68

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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.