Home / 107,619.80-161,429.70-106,928.60

Finding the Fourth Proportional to 107,619.80, 161,429.70 and 106,928.60

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Solution

The fourth proportional to 107,619.80, 161,429.70 and 106,928.60 is: 160,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,619.80 : 161,429.70 = 106,928.60 : x
  2. Step 2: Convert to fraction form
    107,619.80/161,429.70 = 106,928.60/x
  3. Step 3: Cross multiply
    107,619.80x = 161,429.70 × 106,928.60
  4. Step 4: Simplify right side
    107,619.80x = 17,261,451,819.42
  5. Step 5: Solve for x
    x = 17,261,451,819.42/107,619.80
  6. Step 6: Final answer
    x = 160,392.90

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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.