Home / 139,736.07-192,835.64-76,073.87

Finding the Fourth Proportional to 139,736.07, 192,835.64 and 76,073.87

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Solution

The fourth proportional to 139,736.07, 192,835.64 and 76,073.87 is: 104,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736.07 : 192,835.64 = 76,073.87 : x
  2. Step 2: Convert to fraction form
    139,736.07/192,835.64 = 76,073.87/x
  3. Step 3: Cross multiply
    139,736.07x = 192,835.64 × 76,073.87
  4. Step 4: Simplify right side
    139,736.07x = 14,669,752,064.18
  5. Step 5: Solve for x
    x = 14,669,752,064.18/139,736.07
  6. Step 6: Final answer
    x = 104,981.86

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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.