Home / 223,156.62-307,954.91-121,181.13

Finding the Fourth Proportional to 223,156.62, 307,954.91 and 121,181.13

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Solution

The fourth proportional to 223,156.62, 307,954.91 and 121,181.13 is: 167,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,156.62 : 307,954.91 = 121,181.13 : x
  2. Step 2: Convert to fraction form
    223,156.62/307,954.91 = 121,181.13/x
  3. Step 3: Cross multiply
    223,156.62x = 307,954.91 × 121,181.13
  4. Step 4: Simplify right side
    223,156.62x = 37,318,324,285.80
  5. Step 5: Solve for x
    x = 37,318,324,285.80/223,156.62
  6. Step 6: Final answer
    x = 167,229.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.