Home / 126,035.33-173,922.19-78,287.72

Finding the Fourth Proportional to 126,035.33, 173,922.19 and 78,287.72

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Solution

The fourth proportional to 126,035.33, 173,922.19 and 78,287.72 is: 108,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,035.33 : 173,922.19 = 78,287.72 : x
  2. Step 2: Convert to fraction form
    126,035.33/173,922.19 = 78,287.72/x
  3. Step 3: Cross multiply
    126,035.33x = 173,922.19 × 78,287.72
  4. Step 4: Simplify right side
    126,035.33x = 13,615,970,647.18
  5. Step 5: Solve for x
    x = 13,615,970,647.18/126,035.33
  6. Step 6: Final answer
    x = 108,032.97

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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.