Home / 100,367.24-138,504.72-62,116.61

Finding the Fourth Proportional to 100,367.24, 138,504.72 and 62,116.61

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Solution

The fourth proportional to 100,367.24, 138,504.72 and 62,116.61 is: 85,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,367.24 : 138,504.72 = 62,116.61 : x
  2. Step 2: Convert to fraction form
    100,367.24/138,504.72 = 62,116.61/x
  3. Step 3: Cross multiply
    100,367.24x = 138,504.72 × 62,116.61
  4. Step 4: Simplify right side
    100,367.24x = 8,603,443,675.40
  5. Step 5: Solve for x
    x = 8,603,443,675.40/100,367.24
  6. Step 6: Final answer
    x = 85,719.64

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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.