Home / 198,105.24-273,325.50-121,545.72

Finding the Fourth Proportional to 198,105.24, 273,325.50 and 121,545.72

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Solution

The fourth proportional to 198,105.24, 273,325.50 and 121,545.72 is: 167,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,105.24 : 273,325.50 = 121,545.72 : x
  2. Step 2: Convert to fraction form
    198,105.24/273,325.50 = 121,545.72/x
  3. Step 3: Cross multiply
    198,105.24x = 273,325.50 × 121,545.72
  4. Step 4: Simplify right side
    198,105.24x = 33,221,544,691.86
  5. Step 5: Solve for x
    x = 33,221,544,691.86/198,105.24
  6. Step 6: Final answer
    x = 167,696.45

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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.