Home / 126,620.22-174,564.91-81,219.39

Finding the Fourth Proportional to 126,620.22, 174,564.91 and 81,219.39

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Solution

The fourth proportional to 126,620.22, 174,564.91 and 81,219.39 is: 111,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,620.22 : 174,564.91 = 81,219.39 : x
  2. Step 2: Convert to fraction form
    126,620.22/174,564.91 = 81,219.39/x
  3. Step 3: Cross multiply
    126,620.22x = 174,564.91 × 81,219.39
  4. Step 4: Simplify right side
    126,620.22x = 14,178,055,505.60
  5. Step 5: Solve for x
    x = 14,178,055,505.60/126,620.22
  6. Step 6: Final answer
    x = 111,973.08

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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.