Home / 156,913.43-216,537.98-85,295.25

Finding the Fourth Proportional to 156,913.43, 216,537.98 and 85,295.25

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Solution

The fourth proportional to 156,913.43, 216,537.98 and 85,295.25 is: 117,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,913.43 : 216,537.98 = 85,295.25 : x
  2. Step 2: Convert to fraction form
    156,913.43/216,537.98 = 85,295.25/x
  3. Step 3: Cross multiply
    156,913.43x = 216,537.98 × 85,295.25
  4. Step 4: Simplify right side
    156,913.43x = 18,469,660,712.12
  5. Step 5: Solve for x
    x = 18,469,660,712.12/156,913.43
  6. Step 6: Final answer
    x = 117,706.06

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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.