Home / 100,329.54-138,468.88-62,101.36

Finding the Fourth Proportional to 100,329.54, 138,468.88 and 62,101.36

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Solution

The fourth proportional to 100,329.54, 138,468.88 and 62,101.36 is: 85,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,329.54 : 138,468.88 = 62,101.36 : x
  2. Step 2: Convert to fraction form
    100,329.54/138,468.88 = 62,101.36/x
  3. Step 3: Cross multiply
    100,329.54x = 138,468.88 × 62,101.36
  4. Step 4: Simplify right side
    100,329.54x = 8,599,105,765.68
  5. Step 5: Solve for x
    x = 8,599,105,765.68/100,329.54
  6. Step 6: Final answer
    x = 85,708.61

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1.5x scale

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.