Home / 106,902.20-147,540.68-61,571.46

Finding the Fourth Proportional to 106,902.20, 147,540.68 and 61,571.46

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Solution

The fourth proportional to 106,902.20, 147,540.68 and 61,571.46 is: 84,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,902.20 : 147,540.68 = 61,571.46 : x
  2. Step 2: Convert to fraction form
    106,902.20/147,540.68 = 61,571.46/x
  3. Step 3: Cross multiply
    106,902.20x = 147,540.68 × 61,571.46
  4. Step 4: Simplify right side
    106,902.20x = 9,084,294,769.14
  5. Step 5: Solve for x
    x = 9,084,294,769.14/106,902.20
  6. Step 6: Final answer
    x = 84,977.63

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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.