Home / 100,850.67-151,276.41-30,729.78

Finding the Fourth Proportional to 100,850.67, 151,276.41 and 30,729.78

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Solution

The fourth proportional to 100,850.67, 151,276.41 and 30,729.78 is: 46,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.67 : 151,276.41 = 30,729.78 : x
  2. Step 2: Convert to fraction form
    100,850.67/151,276.41 = 30,729.78/x
  3. Step 3: Cross multiply
    100,850.67x = 151,276.41 × 30,729.78
  4. Step 4: Simplify right side
    100,850.67x = 4,648,690,798.49
  5. Step 5: Solve for x
    x = 4,648,690,798.49/100,850.67
  6. Step 6: Final answer
    x = 46,094.79

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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.