Home / 156,914.48-216,542.75-85,294.50

Finding the Fourth Proportional to 156,914.48, 216,542.75 and 85,294.50

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Solution

The fourth proportional to 156,914.48, 216,542.75 and 85,294.50 is: 117,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914.48 : 216,542.75 = 85,294.50 : x
  2. Step 2: Convert to fraction form
    156,914.48/216,542.75 = 85,294.50/x
  3. Step 3: Cross multiply
    156,914.48x = 216,542.75 × 85,294.50
  4. Step 4: Simplify right side
    156,914.48x = 18,469,905,589.88
  5. Step 5: Solve for x
    x = 18,469,905,589.88/156,914.48
  6. Step 6: Final answer
    x = 117,706.83

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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.