Home / 123,998.19-186,021.23-52,919.79

Finding the Fourth Proportional to 123,998.19, 186,021.23 and 52,919.79

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Solution

The fourth proportional to 123,998.19, 186,021.23 and 52,919.79 is: 79,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,998.19 : 186,021.23 = 52,919.79 : x
  2. Step 2: Convert to fraction form
    123,998.19/186,021.23 = 52,919.79/x
  3. Step 3: Cross multiply
    123,998.19x = 186,021.23 × 52,919.79
  4. Step 4: Simplify right side
    123,998.19x = 9,844,204,427.14
  5. Step 5: Solve for x
    x = 9,844,204,427.14/123,998.19
  6. Step 6: Final answer
    x = 79,389.90

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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.