Home / 319,916.12-479,824.97-106,687.76

Finding the Fourth Proportional to 319,916.12, 479,824.97 and 106,687.76

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Solution

The fourth proportional to 319,916.12, 479,824.97 and 106,687.76 is: 160,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,916.12 : 479,824.97 = 106,687.76 : x
  2. Step 2: Convert to fraction form
    319,916.12/479,824.97 = 106,687.76/x
  3. Step 3: Cross multiply
    319,916.12x = 479,824.97 × 106,687.76
  4. Step 4: Simplify right side
    319,916.12x = 51,191,448,308.80
  5. Step 5: Solve for x
    x = 51,191,448,308.80/319,916.12
  6. Step 6: Final answer
    x = 160,015.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.