Home / 150,850.20-226,340.10-76,978.20

Finding the Fourth Proportional to 150,850.20, 226,340.10 and 76,978.20

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Solution

The fourth proportional to 150,850.20, 226,340.10 and 76,978.20 is: 115,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,850.20 : 226,340.10 = 76,978.20 : x
  2. Step 2: Convert to fraction form
    150,850.20/226,340.10 = 76,978.20/x
  3. Step 3: Cross multiply
    150,850.20x = 226,340.10 × 76,978.20
  4. Step 4: Simplify right side
    150,850.20x = 17,423,253,485.82
  5. Step 5: Solve for x
    x = 17,423,253,485.82/150,850.20
  6. Step 6: Final answer
    x = 115,500.37

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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.