Home / 226,486.56-312,549.66-123,120.12

Finding the Fourth Proportional to 226,486.56, 312,549.66 and 123,120.12

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Solution

The fourth proportional to 226,486.56, 312,549.66 and 123,120.12 is: 169,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,486.56 : 312,549.66 = 123,120.12 : x
  2. Step 2: Convert to fraction form
    226,486.56/312,549.66 = 123,120.12/x
  3. Step 3: Cross multiply
    226,486.56x = 312,549.66 × 123,120.12
  4. Step 4: Simplify right side
    226,486.56x = 38,481,151,645.16
  5. Step 5: Solve for x
    x = 38,481,151,645.16/226,486.56
  6. Step 6: Final answer
    x = 169,904.79

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1.5x scale

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.