Home / 100,548.14-138,722.42-57,496.94

Finding the Fourth Proportional to 100,548.14, 138,722.42 and 57,496.94

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Solution

The fourth proportional to 100,548.14, 138,722.42 and 57,496.94 is: 79,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,548.14 : 138,722.42 = 57,496.94 : x
  2. Step 2: Convert to fraction form
    100,548.14/138,722.42 = 57,496.94/x
  3. Step 3: Cross multiply
    100,548.14x = 138,722.42 × 57,496.94
  4. Step 4: Simplify right side
    100,548.14x = 7,976,114,629.73
  5. Step 5: Solve for x
    x = 7,976,114,629.73/100,548.14
  6. Step 6: Final answer
    x = 79,326.33

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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.