Home / 199,354.68-275,131.38-122,858.28

Finding the Fourth Proportional to 199,354.68, 275,131.38 and 122,858.28

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Solution

The fourth proportional to 199,354.68, 275,131.38 and 122,858.28 is: 169,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,354.68 : 275,131.38 = 122,858.28 : x
  2. Step 2: Convert to fraction form
    199,354.68/275,131.38 = 122,858.28/x
  3. Step 3: Cross multiply
    199,354.68x = 275,131.38 × 122,858.28
  4. Step 4: Simplify right side
    199,354.68x = 33,802,168,120.83
  5. Step 5: Solve for x
    x = 33,802,168,120.83/199,354.68
  6. Step 6: Final answer
    x = 169,557.94

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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.