Home / 128,942.22-193,404.20-34,170.31

Finding the Fourth Proportional to 128,942.22, 193,404.20 and 34,170.31

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Solution

The fourth proportional to 128,942.22, 193,404.20 and 34,170.31 is: 51,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,942.22 : 193,404.20 = 34,170.31 : x
  2. Step 2: Convert to fraction form
    128,942.22/193,404.20 = 34,170.31/x
  3. Step 3: Cross multiply
    128,942.22x = 193,404.20 × 34,170.31
  4. Step 4: Simplify right side
    128,942.22x = 6,608,681,071.22
  5. Step 5: Solve for x
    x = 6,608,681,071.22/128,942.22
  6. Step 6: Final answer
    x = 51,253.04

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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.