Home / 128,900.27-193,350.40-40,160.94

Finding the Fourth Proportional to 128,900.27, 193,350.40 and 40,160.94

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Solution

The fourth proportional to 128,900.27, 193,350.40 and 40,160.94 is: 60,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,900.27 : 193,350.40 = 40,160.94 : x
  2. Step 2: Convert to fraction form
    128,900.27/193,350.40 = 40,160.94/x
  3. Step 3: Cross multiply
    128,900.27x = 193,350.40 × 40,160.94
  4. Step 4: Simplify right side
    128,900.27x = 7,765,133,712.97
  5. Step 5: Solve for x
    x = 7,765,133,712.97/128,900.27
  6. Step 6: Final answer
    x = 60,241.41

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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.