Home / 100,758.28-151,170.14-48,171.80

Finding the Fourth Proportional to 100,758.28, 151,170.14 and 48,171.80

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Solution

The fourth proportional to 100,758.28, 151,170.14 and 48,171.80 is: 72,273.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,758.28 : 151,170.14 = 48,171.80 : x
  2. Step 2: Convert to fraction form
    100,758.28/151,170.14 = 48,171.80/x
  3. Step 3: Cross multiply
    100,758.28x = 151,170.14 × 48,171.80
  4. Step 4: Simplify right side
    100,758.28x = 7,282,137,750.05
  5. Step 5: Solve for x
    x = 7,282,137,750.05/100,758.28
  6. Step 6: Final answer
    x = 72,273.34

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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.