Home / 113,739.66-156,945.60-65,986.11

Finding the Fourth Proportional to 113,739.66, 156,945.60 and 65,986.11

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Solution

The fourth proportional to 113,739.66, 156,945.60 and 65,986.11 is: 91,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,739.66 : 156,945.60 = 65,986.11 : x
  2. Step 2: Convert to fraction form
    113,739.66/156,945.60 = 65,986.11/x
  3. Step 3: Cross multiply
    113,739.66x = 156,945.60 × 65,986.11
  4. Step 4: Simplify right side
    113,739.66x = 10,356,229,625.62
  5. Step 5: Solve for x
    x = 10,356,229,625.62/113,739.66
  6. Step 6: Final answer
    x = 91,052.05

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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.