Home / 117,169.06-161,696.26-71,872.02

Finding the Fourth Proportional to 117,169.06, 161,696.26 and 71,872.02

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Solution

The fourth proportional to 117,169.06, 161,696.26 and 71,872.02 is: 99,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,169.06 : 161,696.26 = 71,872.02 : x
  2. Step 2: Convert to fraction form
    117,169.06/161,696.26 = 71,872.02/x
  3. Step 3: Cross multiply
    117,169.06x = 161,696.26 × 71,872.02
  4. Step 4: Simplify right side
    117,169.06x = 11,621,436,832.65
  5. Step 5: Solve for x
    x = 11,621,436,832.65/117,169.06
  6. Step 6: Final answer
    x = 99,185.20

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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.