Home / 86,198.08-119,022.24-55,998.40

Finding the Fourth Proportional to 86,198.08, 119,022.24 and 55,998.40

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Solution

The fourth proportional to 86,198.08, 119,022.24 and 55,998.40 is: 77,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,198.08 : 119,022.24 = 55,998.40 : x
  2. Step 2: Convert to fraction form
    86,198.08/119,022.24 = 55,998.40/x
  3. Step 3: Cross multiply
    86,198.08x = 119,022.24 × 55,998.40
  4. Step 4: Simplify right side
    86,198.08x = 6,665,055,004.42
  5. Step 5: Solve for x
    x = 6,665,055,004.42/86,198.08
  6. Step 6: Final answer
    x = 77,322.55

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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.