Home / 111,790.01-154,218.38-66,442.56

Finding the Fourth Proportional to 111,790.01, 154,218.38 and 66,442.56

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Solution

The fourth proportional to 111,790.01, 154,218.38 and 66,442.56 is: 91,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,790.01 : 154,218.38 = 66,442.56 : x
  2. Step 2: Convert to fraction form
    111,790.01/154,218.38 = 66,442.56/x
  3. Step 3: Cross multiply
    111,790.01x = 154,218.38 × 66,442.56
  4. Step 4: Simplify right side
    111,790.01x = 10,246,663,634.04
  5. Step 5: Solve for x
    x = 10,246,663,634.04/111,790.01
  6. Step 6: Final answer
    x = 91,659.93

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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.