Home / 126,239.22-174,273.26-78,507.95

Finding the Fourth Proportional to 126,239.22, 174,273.26 and 78,507.95

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Solution

The fourth proportional to 126,239.22, 174,273.26 and 78,507.95 is: 108,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,239.22 : 174,273.26 = 78,507.95 : x
  2. Step 2: Convert to fraction form
    126,239.22/174,273.26 = 78,507.95/x
  3. Step 3: Cross multiply
    126,239.22x = 174,273.26 × 78,507.95
  4. Step 4: Simplify right side
    126,239.22x = 13,681,835,118.51
  5. Step 5: Solve for x
    x = 13,681,835,118.51/126,239.22
  6. Step 6: Final answer
    x = 108,380.23

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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.