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Finding the Fourth Proportional to 110,252.40, 165,378.60 and 79,148.40

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Solution

The fourth proportional to 110,252.40, 165,378.60 and 79,148.40 is: 118,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,252.40 : 165,378.60 = 79,148.40 : x
  2. Step 2: Convert to fraction form
    110,252.40/165,378.60 = 79,148.40/x
  3. Step 3: Cross multiply
    110,252.40x = 165,378.60 × 79,148.40
  4. Step 4: Simplify right side
    110,252.40x = 13,089,451,584.24
  5. Step 5: Solve for x
    x = 13,089,451,584.24/110,252.40
  6. Step 6: Final answer
    x = 118,722.60

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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.