Home / 104,989.10-144,882.34-57,243.38

Finding the Fourth Proportional to 104,989.10, 144,882.34 and 57,243.38

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Solution

The fourth proportional to 104,989.10, 144,882.34 and 57,243.38 is: 78,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,989.10 : 144,882.34 = 57,243.38 : x
  2. Step 2: Convert to fraction form
    104,989.10/144,882.34 = 57,243.38/x
  3. Step 3: Cross multiply
    104,989.10x = 144,882.34 × 57,243.38
  4. Step 4: Simplify right side
    104,989.10x = 8,293,553,976.39
  5. Step 5: Solve for x
    x = 8,293,553,976.39/104,989.10
  6. Step 6: Final answer
    x = 78,994.43

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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.