Home / 139,213.38-192,113.46-75,549.81

Finding the Fourth Proportional to 139,213.38, 192,113.46 and 75,549.81

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Solution

The fourth proportional to 139,213.38, 192,113.46 and 75,549.81 is: 104,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,213.38 : 192,113.46 = 75,549.81 : x
  2. Step 2: Convert to fraction form
    139,213.38/192,113.46 = 75,549.81/x
  3. Step 3: Cross multiply
    139,213.38x = 192,113.46 × 75,549.81
  4. Step 4: Simplify right side
    139,213.38x = 14,514,135,401.44
  5. Step 5: Solve for x
    x = 14,514,135,401.44/139,213.38
  6. Step 6: Final answer
    x = 104,258.19

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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.