Home / 104,983.62-144,876-57,236.88

Finding the Fourth Proportional to 104,983.62, 144,876 and 57,236.88

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Solution

The fourth proportional to 104,983.62, 144,876 and 57,236.88 is: 78,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,983.62 : 144,876 = 57,236.88 : x
  2. Step 2: Convert to fraction form
    104,983.62/144,876 = 57,236.88/x
  3. Step 3: Cross multiply
    104,983.62x = 144,876 × 57,236.88
  4. Step 4: Simplify right side
    104,983.62x = 8,292,250,226.88
  5. Step 5: Solve for x
    x = 8,292,250,226.88/104,983.62
  6. Step 6: Final answer
    x = 78,986.13

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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.