Home / 100,233.14-138,320.17-54,910.74

Finding the Fourth Proportional to 100,233.14, 138,320.17 and 54,910.74

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Solution

The fourth proportional to 100,233.14, 138,320.17 and 54,910.74 is: 75,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,233.14 : 138,320.17 = 54,910.74 : x
  2. Step 2: Convert to fraction form
    100,233.14/138,320.17 = 54,910.74/x
  3. Step 3: Cross multiply
    100,233.14x = 138,320.17 × 54,910.74
  4. Step 4: Simplify right side
    100,233.14x = 7,595,262,891.63
  5. Step 5: Solve for x
    x = 7,595,262,891.63/100,233.14
  6. Step 6: Final answer
    x = 75,775.96

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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.