Home / 100,321.32-138,444.96-60,036.84

Finding the Fourth Proportional to 100,321.32, 138,444.96 and 60,036.84

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Solution

The fourth proportional to 100,321.32, 138,444.96 and 60,036.84 is: 82,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,321.32 : 138,444.96 = 60,036.84 : x
  2. Step 2: Convert to fraction form
    100,321.32/138,444.96 = 60,036.84/x
  3. Step 3: Cross multiply
    100,321.32x = 138,444.96 × 60,036.84
  4. Step 4: Simplify right side
    100,321.32x = 8,311,797,912.33
  5. Step 5: Solve for x
    x = 8,311,797,912.33/100,321.32
  6. Step 6: Final answer
    x = 82,851.76

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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.