Home / 128,871.01-193,334.32-38,906.26

Finding the Fourth Proportional to 128,871.01, 193,334.32 and 38,906.26

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Solution

The fourth proportional to 128,871.01, 193,334.32 and 38,906.26 is: 58,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,871.01 : 193,334.32 = 38,906.26 : x
  2. Step 2: Convert to fraction form
    128,871.01/193,334.32 = 38,906.26/x
  3. Step 3: Cross multiply
    128,871.01x = 193,334.32 × 38,906.26
  4. Step 4: Simplify right side
    128,871.01x = 7,521,914,886.14
  5. Step 5: Solve for x
    x = 7,521,914,886.14/128,871.01
  6. Step 6: Final answer
    x = 58,367.78

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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.