Home / 106,287.05-146,686.47-79,382.84

Finding the Fourth Proportional to 106,287.05, 146,686.47 and 79,382.84

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Solution

The fourth proportional to 106,287.05, 146,686.47 and 79,382.84 is: 109,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,287.05 : 146,686.47 = 79,382.84 : x
  2. Step 2: Convert to fraction form
    106,287.05/146,686.47 = 79,382.84/x
  3. Step 3: Cross multiply
    106,287.05x = 146,686.47 × 79,382.84
  4. Step 4: Simplify right side
    106,287.05x = 11,644,387,844.74
  5. Step 5: Solve for x
    x = 11,644,387,844.74/106,287.05
  6. Step 6: Final answer
    x = 109,556.04

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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.