Home / 198,455.27-297,535.28-86,114.54

Finding the Fourth Proportional to 198,455.27, 297,535.28 and 86,114.54

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Solution

The fourth proportional to 198,455.27, 297,535.28 and 86,114.54 is: 129,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,455.27 : 297,535.28 = 86,114.54 : x
  2. Step 2: Convert to fraction form
    198,455.27/297,535.28 = 86,114.54/x
  3. Step 3: Cross multiply
    198,455.27x = 297,535.28 × 86,114.54
  4. Step 4: Simplify right side
    198,455.27x = 25,622,114,084.24
  5. Step 5: Solve for x
    x = 25,622,114,084.24/198,455.27
  6. Step 6: Final answer
    x = 129,107.76

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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.