Home / 136,979.20-205,468.80-94,726.36

Finding the Fourth Proportional to 136,979.20, 205,468.80 and 94,726.36

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Solution

The fourth proportional to 136,979.20, 205,468.80 and 94,726.36 is: 142,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,979.20 : 205,468.80 = 94,726.36 : x
  2. Step 2: Convert to fraction form
    136,979.20/205,468.80 = 94,726.36/x
  3. Step 3: Cross multiply
    136,979.20x = 205,468.80 × 94,726.36
  4. Step 4: Simplify right side
    136,979.20x = 19,463,311,517.57
  5. Step 5: Solve for x
    x = 19,463,311,517.57/136,979.20
  6. Step 6: Final answer
    x = 142,089.54

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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.