Home / 135,853.31-204,112.07-128,300.06

Finding the Fourth Proportional to 135,853.31, 204,112.07 and 128,300.06

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Solution

The fourth proportional to 135,853.31, 204,112.07 and 128,300.06 is: 192,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,853.31 : 204,112.07 = 128,300.06 : x
  2. Step 2: Convert to fraction form
    135,853.31/204,112.07 = 128,300.06/x
  3. Step 3: Cross multiply
    135,853.31x = 204,112.07 × 128,300.06
  4. Step 4: Simplify right side
    135,853.31x = 26,187,589,165.66
  5. Step 5: Solve for x
    x = 26,187,589,165.66/135,853.31
  6. Step 6: Final answer
    x = 192,763.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.