Home / 100,295.47-138,421.92-62,067.33

Finding the Fourth Proportional to 100,295.47, 138,421.92 and 62,067.33

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Solution

The fourth proportional to 100,295.47, 138,421.92 and 62,067.33 is: 85,661.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,295.47 : 138,421.92 = 62,067.33 : x
  2. Step 2: Convert to fraction form
    100,295.47/138,421.92 = 62,067.33/x
  3. Step 3: Cross multiply
    100,295.47x = 138,421.92 × 62,067.33
  4. Step 4: Simplify right side
    100,295.47x = 8,591,479,220.63
  5. Step 5: Solve for x
    x = 8,591,479,220.63/100,295.47
  6. Step 6: Final answer
    x = 85,661.69

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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.