Home / 139,332.78-192,328.29-82,743.75

Finding the Fourth Proportional to 139,332.78, 192,328.29 and 82,743.75

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Solution

The fourth proportional to 139,332.78, 192,328.29 and 82,743.75 is: 114,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,332.78 : 192,328.29 = 82,743.75 : x
  2. Step 2: Convert to fraction form
    139,332.78/192,328.29 = 82,743.75/x
  3. Step 3: Cross multiply
    139,332.78x = 192,328.29 × 82,743.75
  4. Step 4: Simplify right side
    139,332.78x = 15,913,963,945.69
  5. Step 5: Solve for x
    x = 15,913,963,945.69/139,332.78
  6. Step 6: Final answer
    x = 114,215.51

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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.