Home / 120,103.97-180,177.89-40,134.35

Finding the Fourth Proportional to 120,103.97, 180,177.89 and 40,134.35

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Solution

The fourth proportional to 120,103.97, 180,177.89 and 40,134.35 is: 60,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,103.97 : 180,177.89 = 40,134.35 : x
  2. Step 2: Convert to fraction form
    120,103.97/180,177.89 = 40,134.35/x
  3. Step 3: Cross multiply
    120,103.97x = 180,177.89 × 40,134.35
  4. Step 4: Simplify right side
    120,103.97x = 7,231,322,749.29
  5. Step 5: Solve for x
    x = 7,231,322,749.29/120,103.97
  6. Step 6: Final answer
    x = 60,208.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.