Home / 142,822.74-196,959.42-85,452.87

Finding the Fourth Proportional to 142,822.74, 196,959.42 and 85,452.87

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Solution

The fourth proportional to 142,822.74, 196,959.42 and 85,452.87 is: 117,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,822.74 : 196,959.42 = 85,452.87 : x
  2. Step 2: Convert to fraction form
    142,822.74/196,959.42 = 85,452.87/x
  3. Step 3: Cross multiply
    142,822.74x = 196,959.42 × 85,452.87
  4. Step 4: Simplify right side
    142,822.74x = 16,830,747,712.54
  5. Step 5: Solve for x
    x = 16,830,747,712.54/142,822.74
  6. Step 6: Final answer
    x = 117,843.61

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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.