Home / 136,757.22-188,708.04-76,331.22

Finding the Fourth Proportional to 136,757.22, 188,708.04 and 76,331.22

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Solution

The fourth proportional to 136,757.22, 188,708.04 and 76,331.22 is: 105,327.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,757.22 : 188,708.04 = 76,331.22 : x
  2. Step 2: Convert to fraction form
    136,757.22/188,708.04 = 76,331.22/x
  3. Step 3: Cross multiply
    136,757.22x = 188,708.04 × 76,331.22
  4. Step 4: Simplify right side
    136,757.22x = 14,404,314,917.01
  5. Step 5: Solve for x
    x = 14,404,314,917.01/136,757.22
  6. Step 6: Final answer
    x = 105,327.64

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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.