Home / 209,815.45-314,816.19-109,951.90

Finding the Fourth Proportional to 209,815.45, 314,816.19 and 109,951.90

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Solution

The fourth proportional to 209,815.45, 314,816.19 and 109,951.90 is: 164,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,815.45 : 314,816.19 = 109,951.90 : x
  2. Step 2: Convert to fraction form
    209,815.45/314,816.19 = 109,951.90/x
  3. Step 3: Cross multiply
    209,815.45x = 314,816.19 × 109,951.90
  4. Step 4: Simplify right side
    209,815.45x = 34,614,638,241.26
  5. Step 5: Solve for x
    x = 34,614,638,241.26/209,815.45
  6. Step 6: Final answer
    x = 164,976.59

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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.