Home / 128,857.35-193,292.11-106,326.24

Finding the Fourth Proportional to 128,857.35, 193,292.11 and 106,326.24

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Solution

The fourth proportional to 128,857.35, 193,292.11 and 106,326.24 is: 159,494.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,857.35 : 193,292.11 = 106,326.24 : x
  2. Step 2: Convert to fraction form
    128,857.35/193,292.11 = 106,326.24/x
  3. Step 3: Cross multiply
    128,857.35x = 193,292.11 × 106,326.24
  4. Step 4: Simplify right side
    128,857.35x = 20,552,023,175.21
  5. Step 5: Solve for x
    x = 20,552,023,175.21/128,857.35
  6. Step 6: Final answer
    x = 159,494.38

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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.