Home / 139,256.78-192,174.60-75,594.62

Finding the Fourth Proportional to 139,256.78, 192,174.60 and 75,594.62

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Solution

The fourth proportional to 139,256.78, 192,174.60 and 75,594.62 is: 104,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,256.78 : 192,174.60 = 75,594.62 : x
  2. Step 2: Convert to fraction form
    139,256.78/192,174.60 = 75,594.62/x
  3. Step 3: Cross multiply
    139,256.78x = 192,174.60 × 75,594.62
  4. Step 4: Simplify right side
    139,256.78x = 14,527,365,860.65
  5. Step 5: Solve for x
    x = 14,527,365,860.65/139,256.78
  6. Step 6: Final answer
    x = 104,320.71

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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.