Home / 110,619.20-165,928.80-40,505.60

Finding the Fourth Proportional to 110,619.20, 165,928.80 and 40,505.60

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Solution

The fourth proportional to 110,619.20, 165,928.80 and 40,505.60 is: 60,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,619.20 : 165,928.80 = 40,505.60 : x
  2. Step 2: Convert to fraction form
    110,619.20/165,928.80 = 40,505.60/x
  3. Step 3: Cross multiply
    110,619.20x = 165,928.80 × 40,505.60
  4. Step 4: Simplify right side
    110,619.20x = 6,721,045,601.28
  5. Step 5: Solve for x
    x = 6,721,045,601.28/110,619.20
  6. Step 6: Final answer
    x = 60,758.40

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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.