Home / 203,823.94-305,403-123,886.36

Finding the Fourth Proportional to 203,823.94, 305,403 and 123,886.36

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Solution

The fourth proportional to 203,823.94, 305,403 and 123,886.36 is: 185,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,823.94 : 305,403 = 123,886.36 : x
  2. Step 2: Convert to fraction form
    203,823.94/305,403 = 123,886.36/x
  3. Step 3: Cross multiply
    203,823.94x = 305,403 × 123,886.36
  4. Step 4: Simplify right side
    203,823.94x = 37,835,266,003.08
  5. Step 5: Solve for x
    x = 37,835,266,003.08/203,823.94
  6. Step 6: Final answer
    x = 185,627.19

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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.