Home / 104,382.35-156,571.70-72,331.86

Finding the Fourth Proportional to 104,382.35, 156,571.70 and 72,331.86

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Solution

The fourth proportional to 104,382.35, 156,571.70 and 72,331.86 is: 108,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,382.35 : 156,571.70 = 72,331.86 : x
  2. Step 2: Convert to fraction form
    104,382.35/156,571.70 = 72,331.86/x
  3. Step 3: Cross multiply
    104,382.35x = 156,571.70 × 72,331.86
  4. Step 4: Simplify right side
    104,382.35x = 11,325,122,284.36
  5. Step 5: Solve for x
    x = 11,325,122,284.36/104,382.35
  6. Step 6: Final answer
    x = 108,496.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.