Home / 113,741.75-156,912.90-65,967.41

Finding the Fourth Proportional to 113,741.75, 156,912.90 and 65,967.41

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Solution

The fourth proportional to 113,741.75, 156,912.90 and 65,967.41 is: 91,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,741.75 : 156,912.90 = 65,967.41 : x
  2. Step 2: Convert to fraction form
    113,741.75/156,912.90 = 65,967.41/x
  3. Step 3: Cross multiply
    113,741.75x = 156,912.90 × 65,967.41
  4. Step 4: Simplify right side
    113,741.75x = 10,351,137,608.59
  5. Step 5: Solve for x
    x = 10,351,137,608.59/113,741.75
  6. Step 6: Final answer
    x = 91,005.61

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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.