Home / 139,299.03-192,233.39-75,636.81

Finding the Fourth Proportional to 139,299.03, 192,233.39 and 75,636.81

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Solution

The fourth proportional to 139,299.03, 192,233.39 and 75,636.81 is: 104,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,299.03 : 192,233.39 = 75,636.81 : x
  2. Step 2: Convert to fraction form
    139,299.03/192,233.39 = 75,636.81/x
  3. Step 3: Cross multiply
    139,299.03x = 192,233.39 × 75,636.81
  4. Step 4: Simplify right side
    139,299.03x = 14,539,920,016.90
  5. Step 5: Solve for x
    x = 14,539,920,016.90/139,299.03
  6. Step 6: Final answer
    x = 104,379.19

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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.