Home / 156,914.43-216,539.35-85,296.25

Finding the Fourth Proportional to 156,914.43, 216,539.35 and 85,296.25

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Solution

The fourth proportional to 156,914.43, 216,539.35 and 85,296.25 is: 117,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914.43 : 216,539.35 = 85,296.25 : x
  2. Step 2: Convert to fraction form
    156,914.43/216,539.35 = 85,296.25/x
  3. Step 3: Cross multiply
    156,914.43x = 216,539.35 × 85,296.25
  4. Step 4: Simplify right side
    156,914.43x = 18,469,994,532.44
  5. Step 5: Solve for x
    x = 18,469,994,532.44/156,914.43
  6. Step 6: Final answer
    x = 117,707.43

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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.