Home / 100,617.75-138,794.72-62,826.39

Finding the Fourth Proportional to 100,617.75, 138,794.72 and 62,826.39

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Solution

The fourth proportional to 100,617.75, 138,794.72 and 62,826.39 is: 86,664.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,617.75 : 138,794.72 = 62,826.39 : x
  2. Step 2: Convert to fraction form
    100,617.75/138,794.72 = 62,826.39/x
  3. Step 3: Cross multiply
    100,617.75x = 138,794.72 × 62,826.39
  4. Step 4: Simplify right side
    100,617.75x = 8,719,970,894.53
  5. Step 5: Solve for x
    x = 8,719,970,894.53/100,617.75
  6. Step 6: Final answer
    x = 86,664.34

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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.