Home / 149,223.21-223,694.10-74,272.50

Finding the Fourth Proportional to 149,223.21, 223,694.10 and 74,272.50

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Solution

The fourth proportional to 149,223.21, 223,694.10 and 74,272.50 is: 111,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,223.21 : 223,694.10 = 74,272.50 : x
  2. Step 2: Convert to fraction form
    149,223.21/223,694.10 = 74,272.50/x
  3. Step 3: Cross multiply
    149,223.21x = 223,694.10 × 74,272.50
  4. Step 4: Simplify right side
    149,223.21x = 16,614,320,042.25
  5. Step 5: Solve for x
    x = 16,614,320,042.25/149,223.21
  6. Step 6: Final answer
    x = 111,338.71

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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.