Home / 135,858.47-187,426.31-82,112.27

Finding the Fourth Proportional to 135,858.47, 187,426.31 and 82,112.27

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Solution

The fourth proportional to 135,858.47, 187,426.31 and 82,112.27 is: 113,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,858.47 : 187,426.31 = 82,112.27 : x
  2. Step 2: Convert to fraction form
    135,858.47/187,426.31 = 82,112.27/x
  3. Step 3: Cross multiply
    135,858.47x = 187,426.31 × 82,112.27
  4. Step 4: Simplify right side
    135,858.47x = 15,389,998,424.13
  5. Step 5: Solve for x
    x = 15,389,998,424.13/135,858.47
  6. Step 6: Final answer
    x = 113,279.64

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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.