Home / 198,128.53-273,417.37-113,247.42

Finding the Fourth Proportional to 198,128.53, 273,417.37 and 113,247.42

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Solution

The fourth proportional to 198,128.53, 273,417.37 and 113,247.42 is: 156,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,128.53 : 273,417.37 = 113,247.42 : x
  2. Step 2: Convert to fraction form
    198,128.53/273,417.37 = 113,247.42/x
  3. Step 3: Cross multiply
    198,128.53x = 273,417.37 × 113,247.42
  4. Step 4: Simplify right side
    198,128.53x = 30,963,811,064.27
  5. Step 5: Solve for x
    x = 30,963,811,064.27/198,128.53
  6. Step 6: Final answer
    x = 156,281.43

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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.