Home / 223,972.10-309,081.51-123,370.10

Finding the Fourth Proportional to 223,972.10, 309,081.51 and 123,370.10

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Solution

The fourth proportional to 223,972.10, 309,081.51 and 123,370.10 is: 170,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,972.10 : 309,081.51 = 123,370.10 : x
  2. Step 2: Convert to fraction form
    223,972.10/309,081.51 = 123,370.10/x
  3. Step 3: Cross multiply
    223,972.10x = 309,081.51 × 123,370.10
  4. Step 4: Simplify right side
    223,972.10x = 38,131,416,796.85
  5. Step 5: Solve for x
    x = 38,131,416,796.85/223,972.10
  6. Step 6: Final answer
    x = 170,250.74

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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.