Home / 135,115.16-186,433.26-84,791.48

Finding the Fourth Proportional to 135,115.16, 186,433.26 and 84,791.48

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Solution

The fourth proportional to 135,115.16, 186,433.26 and 84,791.48 is: 116,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,115.16 : 186,433.26 = 84,791.48 : x
  2. Step 2: Convert to fraction form
    135,115.16/186,433.26 = 84,791.48/x
  3. Step 3: Cross multiply
    135,115.16x = 186,433.26 × 84,791.48
  4. Step 4: Simplify right side
    135,115.16x = 15,807,952,036.62
  5. Step 5: Solve for x
    x = 15,807,952,036.62/135,115.16
  6. Step 6: Final answer
    x = 116,996.14

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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.