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Finding the Fourth Proportional to 110,119.80, 165,179.70 and 79,246.20

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Solution

The fourth proportional to 110,119.80, 165,179.70 and 79,246.20 is: 118,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,119.80 : 165,179.70 = 79,246.20 : x
  2. Step 2: Convert to fraction form
    110,119.80/165,179.70 = 79,246.20/x
  3. Step 3: Cross multiply
    110,119.80x = 165,179.70 × 79,246.20
  4. Step 4: Simplify right side
    110,119.80x = 13,089,863,542.14
  5. Step 5: Solve for x
    x = 13,089,863,542.14/110,119.80
  6. Step 6: Final answer
    x = 118,869.30

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1.5x scale

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.