Home / 199,998.24-275,777.64-128,351.04

Finding the Fourth Proportional to 199,998.24, 275,777.64 and 128,351.04

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Solution

The fourth proportional to 199,998.24, 275,777.64 and 128,351.04 is: 176,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,998.24 : 275,777.64 = 128,351.04 : x
  2. Step 2: Convert to fraction form
    199,998.24/275,777.64 = 128,351.04/x
  3. Step 3: Cross multiply
    199,998.24x = 275,777.64 × 128,351.04
  4. Step 4: Simplify right side
    199,998.24x = 35,396,346,902.75
  5. Step 5: Solve for x
    x = 35,396,346,902.75/199,998.24
  6. Step 6: Final answer
    x = 176,983.29

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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.