Home / 115,969.73-158,839.09-109,160.87

Finding the Fourth Proportional to 115,969.73, 158,839.09 and 109,160.87

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Solution

The fourth proportional to 115,969.73, 158,839.09 and 109,160.87 is: 149,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.73 : 158,839.09 = 109,160.87 : x
  2. Step 2: Convert to fraction form
    115,969.73/158,839.09 = 109,160.87/x
  3. Step 3: Cross multiply
    115,969.73x = 158,839.09 × 109,160.87
  4. Step 4: Simplify right side
    115,969.73x = 17,339,013,254.41
  5. Step 5: Solve for x
    x = 17,339,013,254.41/115,969.73
  6. Step 6: Final answer
    x = 149,513.27

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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.