Home / 139,289.96-192,217.25-75,627.81

Finding the Fourth Proportional to 139,289.96, 192,217.25 and 75,627.81

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Solution

The fourth proportional to 139,289.96, 192,217.25 and 75,627.81 is: 104,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,289.96 : 192,217.25 = 75,627.81 : x
  2. Step 2: Convert to fraction form
    139,289.96/192,217.25 = 75,627.81/x
  3. Step 3: Cross multiply
    139,289.96x = 192,217.25 × 75,627.81
  4. Step 4: Simplify right side
    139,289.96x = 14,536,969,850.79
  5. Step 5: Solve for x
    x = 14,536,969,850.79/139,289.96
  6. Step 6: Final answer
    x = 104,364.81

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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.