Home / 100,295.68-138,422.22-62,067.54

Finding the Fourth Proportional to 100,295.68, 138,422.22 and 62,067.54

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Solution

The fourth proportional to 100,295.68, 138,422.22 and 62,067.54 is: 85,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,295.68 : 138,422.22 = 62,067.54 : x
  2. Step 2: Convert to fraction form
    100,295.68/138,422.22 = 62,067.54/x
  3. Step 3: Cross multiply
    100,295.68x = 138,422.22 × 62,067.54
  4. Step 4: Simplify right side
    100,295.68x = 8,591,525,984.63
  5. Step 5: Solve for x
    x = 8,591,525,984.63/100,295.68
  6. Step 6: Final answer
    x = 85,661.98

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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.