Home / 117,140.21-175,780.28-107,611.57

Finding the Fourth Proportional to 117,140.21, 175,780.28 and 107,611.57

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Solution

The fourth proportional to 117,140.21, 175,780.28 and 107,611.57 is: 161,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,140.21 : 175,780.28 = 107,611.57 : x
  2. Step 2: Convert to fraction form
    117,140.21/175,780.28 = 107,611.57/x
  3. Step 3: Cross multiply
    117,140.21x = 175,780.28 × 107,611.57
  4. Step 4: Simplify right side
    117,140.21x = 18,915,991,905.84
  5. Step 5: Solve for x
    x = 18,915,991,905.84/117,140.21
  6. Step 6: Final answer
    x = 161,481.63

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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.