Home / 139,917.60-193,086.54-76,255.36

Finding the Fourth Proportional to 139,917.60, 193,086.54 and 76,255.36

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Solution

The fourth proportional to 139,917.60, 193,086.54 and 76,255.36 is: 105,232.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,917.60 : 193,086.54 = 76,255.36 : x
  2. Step 2: Convert to fraction form
    139,917.60/193,086.54 = 76,255.36/x
  3. Step 3: Cross multiply
    139,917.60x = 193,086.54 × 76,255.36
  4. Step 4: Simplify right side
    139,917.60x = 14,723,883,618.85
  5. Step 5: Solve for x
    x = 14,723,883,618.85/139,917.60
  6. Step 6: Final answer
    x = 105,232.53

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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.