Home / 199,717.54-275,612.07-113,672.31

Finding the Fourth Proportional to 199,717.54, 275,612.07 and 113,672.31

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Solution

The fourth proportional to 199,717.54, 275,612.07 and 113,672.31 is: 156,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,717.54 : 275,612.07 = 113,672.31 : x
  2. Step 2: Convert to fraction form
    199,717.54/275,612.07 = 113,672.31/x
  3. Step 3: Cross multiply
    199,717.54x = 275,612.07 × 113,672.31
  4. Step 4: Simplify right side
    199,717.54x = 31,329,460,660.78
  5. Step 5: Solve for x
    x = 31,329,460,660.78/199,717.54
  6. Step 6: Final answer
    x = 156,868.85

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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.