Home / 131,134.36-180,791.22-85,734.29

Finding the Fourth Proportional to 131,134.36, 180,791.22 and 85,734.29

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Solution

The fourth proportional to 131,134.36, 180,791.22 and 85,734.29 is: 118,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,134.36 : 180,791.22 = 85,734.29 : x
  2. Step 2: Convert to fraction form
    131,134.36/180,791.22 = 85,734.29/x
  3. Step 3: Cross multiply
    131,134.36x = 180,791.22 × 85,734.29
  4. Step 4: Simplify right side
    131,134.36x = 15,500,006,884.93
  5. Step 5: Solve for x
    x = 15,500,006,884.93/131,134.36
  6. Step 6: Final answer
    x = 118,199.43

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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.