Home / 136,619.86-188,471.06-88,855.78

Finding the Fourth Proportional to 136,619.86, 188,471.06 and 88,855.78

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Solution

The fourth proportional to 136,619.86, 188,471.06 and 88,855.78 is: 122,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,619.86 : 188,471.06 = 88,855.78 : x
  2. Step 2: Convert to fraction form
    136,619.86/188,471.06 = 88,855.78/x
  3. Step 3: Cross multiply
    136,619.86x = 188,471.06 × 88,855.78
  4. Step 4: Simplify right side
    136,619.86x = 16,746,743,043.73
  5. Step 5: Solve for x
    x = 16,746,743,043.73/136,619.86
  6. Step 6: Final answer
    x = 122,579.13

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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.