Home / 123,844.26-170,975.94-81,525.81

Finding the Fourth Proportional to 123,844.26, 170,975.94 and 81,525.81

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Solution

The fourth proportional to 123,844.26, 170,975.94 and 81,525.81 is: 112,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,844.26 : 170,975.94 = 81,525.81 : x
  2. Step 2: Convert to fraction form
    123,844.26/170,975.94 = 81,525.81/x
  3. Step 3: Cross multiply
    123,844.26x = 170,975.94 × 81,525.81
  4. Step 4: Simplify right side
    123,844.26x = 13,938,951,999.01
  5. Step 5: Solve for x
    x = 13,938,951,999.01/123,844.26
  6. Step 6: Final answer
    x = 112,552.27

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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.