Home / 139,721.54-192,814.76-76,059.18

Finding the Fourth Proportional to 139,721.54, 192,814.76 and 76,059.18

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Solution

The fourth proportional to 139,721.54, 192,814.76 and 76,059.18 is: 104,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,721.54 : 192,814.76 = 76,059.18 : x
  2. Step 2: Convert to fraction form
    139,721.54/192,814.76 = 76,059.18/x
  3. Step 3: Cross multiply
    139,721.54x = 192,814.76 × 76,059.18
  4. Step 4: Simplify right side
    139,721.54x = 14,665,332,537.50
  5. Step 5: Solve for x
    x = 14,665,332,537.50/139,721.54
  6. Step 6: Final answer
    x = 104,961.14

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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.