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Finding the Fourth Proportional to 120,008.20, 179,969.10 and 60,824.20

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Solution

The fourth proportional to 120,008.20, 179,969.10 and 60,824.20 is: 91,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,008.20 : 179,969.10 = 60,824.20 : x
  2. Step 2: Convert to fraction form
    120,008.20/179,969.10 = 60,824.20/x
  3. Step 3: Cross multiply
    120,008.20x = 179,969.10 × 60,824.20
  4. Step 4: Simplify right side
    120,008.20x = 10,946,476,532.22
  5. Step 5: Solve for x
    x = 10,946,476,532.22/120,008.20
  6. Step 6: Final answer
    x = 91,214.40

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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.