Home / 100,388.20-138,540.06-60,094.17

Finding the Fourth Proportional to 100,388.20, 138,540.06 and 60,094.17

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Solution

The fourth proportional to 100,388.20, 138,540.06 and 60,094.17 is: 82,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,388.20 : 138,540.06 = 60,094.17 : x
  2. Step 2: Convert to fraction form
    100,388.20/138,540.06 = 60,094.17/x
  3. Step 3: Cross multiply
    100,388.20x = 138,540.06 × 60,094.17
  4. Step 4: Simplify right side
    100,388.20x = 8,325,449,917.45
  5. Step 5: Solve for x
    x = 8,325,449,917.45/100,388.20
  6. Step 6: Final answer
    x = 82,932.55

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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.