Home / 100,259.25-138,357.77-59,974.71

Finding the Fourth Proportional to 100,259.25, 138,357.77 and 59,974.71

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Solution

The fourth proportional to 100,259.25, 138,357.77 and 59,974.71 is: 82,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,259.25 : 138,357.77 = 59,974.71 : x
  2. Step 2: Convert to fraction form
    100,259.25/138,357.77 = 59,974.71/x
  3. Step 3: Cross multiply
    100,259.25x = 138,357.77 × 59,974.71
  4. Step 4: Simplify right side
    100,259.25x = 8,297,966,832.12
  5. Step 5: Solve for x
    x = 8,297,966,832.12/100,259.25
  6. Step 6: Final answer
    x = 82,765.10

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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.