Home / 139,579.76-192,618.63-75,917.54

Finding the Fourth Proportional to 139,579.76, 192,618.63 and 75,917.54

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Solution

The fourth proportional to 139,579.76, 192,618.63 and 75,917.54 is: 104,765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,579.76 : 192,618.63 = 75,917.54 : x
  2. Step 2: Convert to fraction form
    139,579.76/192,618.63 = 75,917.54/x
  3. Step 3: Cross multiply
    139,579.76x = 192,618.63 × 75,917.54
  4. Step 4: Simplify right side
    139,579.76x = 14,623,133,029.32
  5. Step 5: Solve for x
    x = 14,623,133,029.32/139,579.76
  6. Step 6: Final answer
    x = 104,765.42

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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.