Home / 231,112.05-318,916.46-127,741.89

Finding the Fourth Proportional to 231,112.05, 318,916.46 and 127,741.89

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Solution

The fourth proportional to 231,112.05, 318,916.46 and 127,741.89 is: 176,273.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,112.05 : 318,916.46 = 127,741.89 : x
  2. Step 2: Convert to fraction form
    231,112.05/318,916.46 = 127,741.89/x
  3. Step 3: Cross multiply
    231,112.05x = 318,916.46 × 127,741.89
  4. Step 4: Simplify right side
    231,112.05x = 40,738,992,867.80
  5. Step 5: Solve for x
    x = 40,738,992,867.80/231,112.05
  6. Step 6: Final answer
    x = 176,273.78

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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.