Home / 106,115.31-146,356.14-65,806.29

Finding the Fourth Proportional to 106,115.31, 146,356.14 and 65,806.29

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Solution

The fourth proportional to 106,115.31, 146,356.14 and 65,806.29 is: 90,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,115.31 : 146,356.14 = 65,806.29 : x
  2. Step 2: Convert to fraction form
    106,115.31/146,356.14 = 65,806.29/x
  3. Step 3: Cross multiply
    106,115.31x = 146,356.14 × 65,806.29
  4. Step 4: Simplify right side
    106,115.31x = 9,631,154,592.12
  5. Step 5: Solve for x
    x = 9,631,154,592.12/106,115.31
  6. Step 6: Final answer
    x = 90,761.22

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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.