Home / 149,784.09-206,674.69-85,249.58

Finding the Fourth Proportional to 149,784.09, 206,674.69 and 85,249.58

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Solution

The fourth proportional to 149,784.09, 206,674.69 and 85,249.58 is: 117,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,784.09 : 206,674.69 = 85,249.58 : x
  2. Step 2: Convert to fraction form
    149,784.09/206,674.69 = 85,249.58/x
  3. Step 3: Cross multiply
    149,784.09x = 206,674.69 × 85,249.58
  4. Step 4: Simplify right side
    149,784.09x = 17,618,930,595.02
  5. Step 5: Solve for x
    x = 17,618,930,595.02/149,784.09
  6. Step 6: Final answer
    x = 117,628.86

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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.