Home / 106,218.06-159,353.82-87,274.41

Finding the Fourth Proportional to 106,218.06, 159,353.82 and 87,274.41

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Solution

The fourth proportional to 106,218.06, 159,353.82 and 87,274.41 is: 130,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,218.06 : 159,353.82 = 87,274.41 : x
  2. Step 2: Convert to fraction form
    106,218.06/159,353.82 = 87,274.41/x
  3. Step 3: Cross multiply
    106,218.06x = 159,353.82 × 87,274.41
  4. Step 4: Simplify right side
    106,218.06x = 13,907,510,621.75
  5. Step 5: Solve for x
    x = 13,907,510,621.75/106,218.06
  6. Step 6: Final answer
    x = 130,933.58

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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.