Home / 136,619.36-188,470.37-88,855.28

Finding the Fourth Proportional to 136,619.36, 188,470.37 and 88,855.28

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Solution

The fourth proportional to 136,619.36, 188,470.37 and 88,855.28 is: 122,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,619.36 : 188,470.37 = 88,855.28 : x
  2. Step 2: Convert to fraction form
    136,619.36/188,470.37 = 88,855.28/x
  3. Step 3: Cross multiply
    136,619.36x = 188,470.37 × 88,855.28
  4. Step 4: Simplify right side
    136,619.36x = 16,746,587,234.70
  5. Step 5: Solve for x
    x = 16,746,587,234.70/136,619.36
  6. Step 6: Final answer
    x = 122,578.44

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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.