Home / 100,040.49-138,098.39-62,333.37

Finding the Fourth Proportional to 100,040.49, 138,098.39 and 62,333.37

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Solution

The fourth proportional to 100,040.49, 138,098.39 and 62,333.37 is: 86,046.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,040.49 : 138,098.39 = 62,333.37 : x
  2. Step 2: Convert to fraction form
    100,040.49/138,098.39 = 62,333.37/x
  3. Step 3: Cross multiply
    100,040.49x = 138,098.39 × 62,333.37
  4. Step 4: Simplify right side
    100,040.49x = 8,608,137,728.61
  5. Step 5: Solve for x
    x = 8,608,137,728.61/100,040.49
  6. Step 6: Final answer
    x = 86,046.54

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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.