Home / 181,104.30-249,912.09-100,531.80

Finding the Fourth Proportional to 181,104.30, 249,912.09 and 100,531.80

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Solution

The fourth proportional to 181,104.30, 249,912.09 and 100,531.80 is: 138,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,104.30 : 249,912.09 = 100,531.80 : x
  2. Step 2: Convert to fraction form
    181,104.30/249,912.09 = 100,531.80/x
  3. Step 3: Cross multiply
    181,104.30x = 249,912.09 × 100,531.80
  4. Step 4: Simplify right side
    181,104.30x = 25,124,112,249.46
  5. Step 5: Solve for x
    x = 25,124,112,249.46/181,104.30
  6. Step 6: Final answer
    x = 138,727.31

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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.