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Finding the Fourth Proportional to 136,669.20, 205,003.80 and 124,203.30

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Solution

The fourth proportional to 136,669.20, 205,003.80 and 124,203.30 is: 186,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,669.20 : 205,003.80 = 124,203.30 : x
  2. Step 2: Convert to fraction form
    136,669.20/205,003.80 = 124,203.30/x
  3. Step 3: Cross multiply
    136,669.20x = 205,003.80 × 124,203.30
  4. Step 4: Simplify right side
    136,669.20x = 25,462,148,472.54
  5. Step 5: Solve for x
    x = 25,462,148,472.54/136,669.20
  6. Step 6: Final answer
    x = 186,304.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.