Home / 203,927.90-305,399.62-122,641.16

Finding the Fourth Proportional to 203,927.90, 305,399.62 and 122,641.16

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Solution

The fourth proportional to 203,927.90, 305,399.62 and 122,641.16 is: 183,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,927.90 : 305,399.62 = 122,641.16 : x
  2. Step 2: Convert to fraction form
    203,927.90/305,399.62 = 122,641.16/x
  3. Step 3: Cross multiply
    203,927.90x = 305,399.62 × 122,641.16
  4. Step 4: Simplify right side
    203,927.90x = 37,454,563,047.15
  5. Step 5: Solve for x
    x = 37,454,563,047.15/203,927.90
  6. Step 6: Final answer
    x = 183,665.71

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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.