Home / 115,969.98-158,839.44-109,161.12

Finding the Fourth Proportional to 115,969.98, 158,839.44 and 109,161.12

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Solution

The fourth proportional to 115,969.98, 158,839.44 and 109,161.12 is: 149,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.98 : 158,839.44 = 109,161.12 : x
  2. Step 2: Convert to fraction form
    115,969.98/158,839.44 = 109,161.12/x
  3. Step 3: Cross multiply
    115,969.98x = 158,839.44 × 109,161.12
  4. Step 4: Simplify right side
    115,969.98x = 17,339,091,170.57
  5. Step 5: Solve for x
    x = 17,339,091,170.57/115,969.98
  6. Step 6: Final answer
    x = 149,513.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.