Home / 101,946.32-140,687.56-57,233.36

Finding the Fourth Proportional to 101,946.32, 140,687.56 and 57,233.36

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Solution

The fourth proportional to 101,946.32, 140,687.56 and 57,233.36 is: 78,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,946.32 : 140,687.56 = 57,233.36 : x
  2. Step 2: Convert to fraction form
    101,946.32/140,687.56 = 57,233.36/x
  3. Step 3: Cross multiply
    101,946.32x = 140,687.56 × 57,233.36
  4. Step 4: Simplify right side
    101,946.32x = 8,052,021,769.00
  5. Step 5: Solve for x
    x = 8,052,021,769.00/101,946.32
  6. Step 6: Final answer
    x = 78,982.96

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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.