Home / 136,458.24-188,310.12-76,033.20

Finding the Fourth Proportional to 136,458.24, 188,310.12 and 76,033.20

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Solution

The fourth proportional to 136,458.24, 188,310.12 and 76,033.20 is: 104,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,458.24 : 188,310.12 = 76,033.20 : x
  2. Step 2: Convert to fraction form
    136,458.24/188,310.12 = 76,033.20/x
  3. Step 3: Cross multiply
    136,458.24x = 188,310.12 × 76,033.20
  4. Step 4: Simplify right side
    136,458.24x = 14,317,821,015.98
  5. Step 5: Solve for x
    x = 14,317,821,015.98/136,458.24
  6. Step 6: Final answer
    x = 104,924.56

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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.