Home / 123,619.92-185,431.80-30,127.44

Finding the Fourth Proportional to 123,619.92, 185,431.80 and 30,127.44

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Solution

The fourth proportional to 123,619.92, 185,431.80 and 30,127.44 is: 45,191.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,619.92 : 185,431.80 = 30,127.44 : x
  2. Step 2: Convert to fraction form
    123,619.92/185,431.80 = 30,127.44/x
  3. Step 3: Cross multiply
    123,619.92x = 185,431.80 × 30,127.44
  4. Step 4: Simplify right side
    123,619.92x = 5,586,585,428.59
  5. Step 5: Solve for x
    x = 5,586,585,428.59/123,619.92
  6. Step 6: Final answer
    x = 45,191.63

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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.