Home / 149,385.54-206,151.03-82,317.54

Finding the Fourth Proportional to 149,385.54, 206,151.03 and 82,317.54

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Solution

The fourth proportional to 149,385.54, 206,151.03 and 82,317.54 is: 113,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,385.54 : 206,151.03 = 82,317.54 : x
  2. Step 2: Convert to fraction form
    149,385.54/206,151.03 = 82,317.54/x
  3. Step 3: Cross multiply
    149,385.54x = 206,151.03 × 82,317.54
  4. Step 4: Simplify right side
    149,385.54x = 16,969,845,658.07
  5. Step 5: Solve for x
    x = 16,969,845,658.07/149,385.54
  6. Step 6: Final answer
    x = 113,597.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.