Home / 223,389.06-308,278.60-121,414.56

Finding the Fourth Proportional to 223,389.06, 308,278.60 and 121,414.56

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Solution

The fourth proportional to 223,389.06, 308,278.60 and 121,414.56 is: 167,553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,389.06 : 308,278.60 = 121,414.56 : x
  2. Step 2: Convert to fraction form
    223,389.06/308,278.60 = 121,414.56/x
  3. Step 3: Cross multiply
    223,389.06x = 308,278.60 × 121,414.56
  4. Step 4: Simplify right side
    223,389.06x = 37,429,510,576.42
  5. Step 5: Solve for x
    x = 37,429,510,576.42/223,389.06
  6. Step 6: Final answer
    x = 167,553.02

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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.