Home / 198,418.10-273,833.90-112,392.42

Finding the Fourth Proportional to 198,418.10, 273,833.90 and 112,392.42

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Solution

The fourth proportional to 198,418.10, 273,833.90 and 112,392.42 is: 155,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,418.10 : 273,833.90 = 112,392.42 : x
  2. Step 2: Convert to fraction form
    198,418.10/273,833.90 = 112,392.42/x
  3. Step 3: Cross multiply
    198,418.10x = 273,833.90 × 112,392.42
  4. Step 4: Simplify right side
    198,418.10x = 30,776,854,137.08
  5. Step 5: Solve for x
    x = 30,776,854,137.08/198,418.10
  6. Step 6: Final answer
    x = 155,111.13

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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.