Home / 139,500.44-192,511.86-75,838.36

Finding the Fourth Proportional to 139,500.44, 192,511.86 and 75,838.36

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Solution

The fourth proportional to 139,500.44, 192,511.86 and 75,838.36 is: 104,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,500.44 : 192,511.86 = 75,838.36 : x
  2. Step 2: Convert to fraction form
    139,500.44/192,511.86 = 75,838.36/x
  3. Step 3: Cross multiply
    139,500.44x = 192,511.86 × 75,838.36
  4. Step 4: Simplify right side
    139,500.44x = 14,599,783,742.95
  5. Step 5: Solve for x
    x = 14,599,783,742.95/139,500.44
  6. Step 6: Final answer
    x = 104,657.62

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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.