Home / 100,340.25-138,491.15-60,063

Finding the Fourth Proportional to 100,340.25, 138,491.15 and 60,063

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Solution

The fourth proportional to 100,340.25, 138,491.15 and 60,063 is: 82,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,340.25 : 138,491.15 = 60,063 : x
  2. Step 2: Convert to fraction form
    100,340.25/138,491.15 = 60,063/x
  3. Step 3: Cross multiply
    100,340.25x = 138,491.15 × 60,063
  4. Step 4: Simplify right side
    100,340.25x = 8,318,193,642.14
  5. Step 5: Solve for x
    x = 8,318,193,642.14/100,340.25
  6. Step 6: Final answer
    x = 82,899.87

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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.