Home / 139,213.76-192,113.96-75,550.19

Finding the Fourth Proportional to 139,213.76, 192,113.96 and 75,550.19

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Solution

The fourth proportional to 139,213.76, 192,113.96 and 75,550.19 is: 104,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,213.76 : 192,113.96 = 75,550.19 : x
  2. Step 2: Convert to fraction form
    139,213.76/192,113.96 = 75,550.19/x
  3. Step 3: Cross multiply
    139,213.76x = 192,113.96 × 75,550.19
  4. Step 4: Simplify right side
    139,213.76x = 14,514,244,841.33
  5. Step 5: Solve for x
    x = 14,514,244,841.33/139,213.76
  6. Step 6: Final answer
    x = 104,258.70

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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.