Home / 139,217.19-192,086.44-84,768.72

Finding the Fourth Proportional to 139,217.19, 192,086.44 and 84,768.72

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Solution

The fourth proportional to 139,217.19, 192,086.44 and 84,768.72 is: 116,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,217.19 : 192,086.44 = 84,768.72 : x
  2. Step 2: Convert to fraction form
    139,217.19/192,086.44 = 84,768.72/x
  3. Step 3: Cross multiply
    139,217.19x = 192,086.44 × 84,768.72
  4. Step 4: Simplify right side
    139,217.19x = 16,282,921,648.16
  5. Step 5: Solve for x
    x = 16,282,921,648.16/139,217.19
  6. Step 6: Final answer
    x = 116,960.57

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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.