Home / 136,815.22-188,836.44-80,244.82

Finding the Fourth Proportional to 136,815.22, 188,836.44 and 80,244.82

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Solution

The fourth proportional to 136,815.22, 188,836.44 and 80,244.82 is: 110,756.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,815.22 : 188,836.44 = 80,244.82 : x
  2. Step 2: Convert to fraction form
    136,815.22/188,836.44 = 80,244.82/x
  3. Step 3: Cross multiply
    136,815.22x = 188,836.44 × 80,244.82
  4. Step 4: Simplify right side
    136,815.22x = 15,153,146,137.24
  5. Step 5: Solve for x
    x = 15,153,146,137.24/136,815.22
  6. Step 6: Final answer
    x = 110,756.29

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1.5x scale

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.