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Finding the Fourth Proportional to 149,048.48, 205,871.49 and 108,146.97

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Solution

The fourth proportional to 149,048.48, 205,871.49 and 108,146.97 is: 149,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,048.48 : 205,871.49 = 108,146.97 : x
  2. Step 2: Convert to fraction form
    149,048.48/205,871.49 = 108,146.97/x
  3. Step 3: Cross multiply
    149,048.48x = 205,871.49 × 108,146.97
  4. Step 4: Simplify right side
    149,048.48x = 22,264,377,447.33
  5. Step 5: Solve for x
    x = 22,264,377,447.33/149,048.48
  6. Step 6: Final answer
    x = 149,376.75

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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.