Home / 115,973.98-158,844.92-109,165.12

Finding the Fourth Proportional to 115,973.98, 158,844.92 and 109,165.12

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Solution

The fourth proportional to 115,973.98, 158,844.92 and 109,165.12 is: 149,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,973.98 : 158,844.92 = 109,165.12 : x
  2. Step 2: Convert to fraction form
    115,973.98/158,844.92 = 109,165.12/x
  3. Step 3: Cross multiply
    115,973.98x = 158,844.92 × 109,165.12
  4. Step 4: Simplify right side
    115,973.98x = 17,340,324,753.19
  5. Step 5: Solve for x
    x = 17,340,324,753.19/115,973.98
  6. Step 6: Final answer
    x = 149,519.10

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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.