Home / 123,943.78-185,914.05-30,450.34

Finding the Fourth Proportional to 123,943.78, 185,914.05 and 30,450.34

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Solution

The fourth proportional to 123,943.78, 185,914.05 and 30,450.34 is: 45,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,943.78 : 185,914.05 = 30,450.34 : x
  2. Step 2: Convert to fraction form
    123,943.78/185,914.05 = 30,450.34/x
  3. Step 3: Cross multiply
    123,943.78x = 185,914.05 × 30,450.34
  4. Step 4: Simplify right side
    123,943.78x = 5,661,146,033.28
  5. Step 5: Solve for x
    x = 5,661,146,033.28/123,943.78
  6. Step 6: Final answer
    x = 45,675.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.