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Finding the Fourth Proportional to 110,259.60, 165,243.60 and 97,720.80

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Solution

The fourth proportional to 110,259.60, 165,243.60 and 97,720.80 is: 146,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,259.60 : 165,243.60 = 97,720.80 : x
  2. Step 2: Convert to fraction form
    110,259.60/165,243.60 = 97,720.80/x
  3. Step 3: Cross multiply
    110,259.60x = 165,243.60 × 97,720.80
  4. Step 4: Simplify right side
    110,259.60x = 16,147,736,786.88
  5. Step 5: Solve for x
    x = 16,147,736,786.88/110,259.60
  6. Step 6: Final answer
    x = 146,451.98

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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.