Home / 139,579.42-192,614.04-75,917.26

Finding the Fourth Proportional to 139,579.42, 192,614.04 and 75,917.26

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Solution

The fourth proportional to 139,579.42, 192,614.04 and 75,917.26 is: 104,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,579.42 : 192,614.04 = 75,917.26 : x
  2. Step 2: Convert to fraction form
    139,579.42/192,614.04 = 75,917.26/x
  3. Step 3: Cross multiply
    139,579.42x = 192,614.04 × 75,917.26
  4. Step 4: Simplify right side
    139,579.42x = 14,622,730,154.33
  5. Step 5: Solve for x
    x = 14,622,730,154.33/139,579.42
  6. Step 6: Final answer
    x = 104,762.79

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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.