Home / 113,795.30-156,969.86-73,532.80

Finding the Fourth Proportional to 113,795.30, 156,969.86 and 73,532.80

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Solution

The fourth proportional to 113,795.30, 156,969.86 and 73,532.80 is: 101,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,795.30 : 156,969.86 = 73,532.80 : x
  2. Step 2: Convert to fraction form
    113,795.30/156,969.86 = 73,532.80/x
  3. Step 3: Cross multiply
    113,795.30x = 156,969.86 × 73,532.80
  4. Step 4: Simplify right side
    113,795.30x = 11,542,433,321.41
  5. Step 5: Solve for x
    x = 11,542,433,321.41/113,795.30
  6. Step 6: Final answer
    x = 101,431.55

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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.