Home / 156,935.62-216,568.60-85,317.43

Finding the Fourth Proportional to 156,935.62, 216,568.60 and 85,317.43

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Solution

The fourth proportional to 156,935.62, 216,568.60 and 85,317.43 is: 117,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.62 : 216,568.60 = 85,317.43 : x
  2. Step 2: Convert to fraction form
    156,935.62/216,568.60 = 85,317.43/x
  3. Step 3: Cross multiply
    156,935.62x = 216,568.60 × 85,317.43
  4. Step 4: Simplify right side
    156,935.62x = 18,477,076,370.70
  5. Step 5: Solve for x
    x = 18,477,076,370.70/156,935.62
  6. Step 6: Final answer
    x = 117,736.66

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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.