Home / 139,216.91-192,020.09-127,768.70

Finding the Fourth Proportional to 139,216.91, 192,020.09 and 127,768.70

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Solution

The fourth proportional to 139,216.91, 192,020.09 and 127,768.70 is: 176,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,216.91 : 192,020.09 = 127,768.70 : x
  2. Step 2: Convert to fraction form
    139,216.91/192,020.09 = 127,768.70/x
  3. Step 3: Cross multiply
    139,216.91x = 192,020.09 × 127,768.70
  4. Step 4: Simplify right side
    139,216.91x = 24,534,157,273.18
  5. Step 5: Solve for x
    x = 24,534,157,273.18/139,216.91
  6. Step 6: Final answer
    x = 176,229.72

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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.