Home / 106,130.25-146,340.17-81,876.02

Finding the Fourth Proportional to 106,130.25, 146,340.17 and 81,876.02

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Solution

The fourth proportional to 106,130.25, 146,340.17 and 81,876.02 is: 112,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,130.25 : 146,340.17 = 81,876.02 : x
  2. Step 2: Convert to fraction form
    106,130.25/146,340.17 = 81,876.02/x
  3. Step 3: Cross multiply
    106,130.25x = 146,340.17 × 81,876.02
  4. Step 4: Simplify right side
    106,130.25x = 11,981,749,851.68
  5. Step 5: Solve for x
    x = 11,981,749,851.68/106,130.25
  6. Step 6: Final answer
    x = 112,896.65

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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.