Home / 139,914.53-193,076.43-76,250.96

Finding the Fourth Proportional to 139,914.53, 193,076.43 and 76,250.96

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Solution

The fourth proportional to 139,914.53, 193,076.43 and 76,250.96 is: 105,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,914.53 : 193,076.43 = 76,250.96 : x
  2. Step 2: Convert to fraction form
    139,914.53/193,076.43 = 76,250.96/x
  3. Step 3: Cross multiply
    139,914.53x = 193,076.43 × 76,250.96
  4. Step 4: Simplify right side
    139,914.53x = 14,722,263,140.87
  5. Step 5: Solve for x
    x = 14,722,263,140.87/139,914.53
  6. Step 6: Final answer
    x = 105,223.26

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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.