Home / 120,101.75-180,091.41-40,110.94

Finding the Fourth Proportional to 120,101.75, 180,091.41 and 40,110.94

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Solution

The fourth proportional to 120,101.75, 180,091.41 and 40,110.94 is: 60,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,101.75 : 180,091.41 = 40,110.94 : x
  2. Step 2: Convert to fraction form
    120,101.75/180,091.41 = 40,110.94/x
  3. Step 3: Cross multiply
    120,101.75x = 180,091.41 × 40,110.94
  4. Step 4: Simplify right side
    120,101.75x = 7,223,635,741.03
  5. Step 5: Solve for x
    x = 7,223,635,741.03/120,101.75
  6. Step 6: Final answer
    x = 60,145.97

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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.