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Finding the Fourth Proportional to 149,996.80, 225,254.40 and 80,012.80

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Solution

The fourth proportional to 149,996.80, 225,254.40 and 80,012.80 is: 120,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,996.80 : 225,254.40 = 80,012.80 : x
  2. Step 2: Convert to fraction form
    149,996.80/225,254.40 = 80,012.80/x
  3. Step 3: Cross multiply
    149,996.80x = 225,254.40 × 80,012.80
  4. Step 4: Simplify right side
    149,996.80x = 18,023,235,256.32
  5. Step 5: Solve for x
    x = 18,023,235,256.32/149,996.80
  6. Step 6: Final answer
    x = 120,157.47

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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.