Home / 106,489.13-146,896.69-74,172.56

Finding the Fourth Proportional to 106,489.13, 146,896.69 and 74,172.56

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Solution

The fourth proportional to 106,489.13, 146,896.69 and 74,172.56 is: 102,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,489.13 : 146,896.69 = 74,172.56 : x
  2. Step 2: Convert to fraction form
    106,489.13/146,896.69 = 74,172.56/x
  3. Step 3: Cross multiply
    106,489.13x = 146,896.69 × 74,172.56
  4. Step 4: Simplify right side
    106,489.13x = 10,895,703,598.28
  5. Step 5: Solve for x
    x = 10,895,703,598.28/106,489.13
  6. Step 6: Final answer
    x = 102,317.52

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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.