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Finding the Fourth Proportional to 110,455.20, 165,682.80 and 40,336.80

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Solution

The fourth proportional to 110,455.20, 165,682.80 and 40,336.80 is: 60,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,455.20 : 165,682.80 = 40,336.80 : x
  2. Step 2: Convert to fraction form
    110,455.20/165,682.80 = 40,336.80/x
  3. Step 3: Cross multiply
    110,455.20x = 165,682.80 × 40,336.80
  4. Step 4: Simplify right side
    110,455.20x = 6,683,113,967.04
  5. Step 5: Solve for x
    x = 6,683,113,967.04/110,455.20
  6. Step 6: Final answer
    x = 60,505.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.