Home / 156,687.45-216,228.68-85,067.48

Finding the Fourth Proportional to 156,687.45, 216,228.68 and 85,067.48

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Solution

The fourth proportional to 156,687.45, 216,228.68 and 85,067.48 is: 117,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687.45 : 216,228.68 = 85,067.48 : x
  2. Step 2: Convert to fraction form
    156,687.45/216,228.68 = 85,067.48/x
  3. Step 3: Cross multiply
    156,687.45x = 216,228.68 × 85,067.48
  4. Step 4: Simplify right side
    156,687.45x = 18,394,028,911.33
  5. Step 5: Solve for x
    x = 18,394,028,911.33/156,687.45
  6. Step 6: Final answer
    x = 117,393.12

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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.