Home / 156,692.27-216,235.77-85,072.61

Finding the Fourth Proportional to 156,692.27, 216,235.77 and 85,072.61

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Solution

The fourth proportional to 156,692.27, 216,235.77 and 85,072.61 is: 117,400.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,692.27 : 216,235.77 = 85,072.61 : x
  2. Step 2: Convert to fraction form
    156,692.27/216,235.77 = 85,072.61/x
  3. Step 3: Cross multiply
    156,692.27x = 216,235.77 × 85,072.61
  4. Step 4: Simplify right side
    156,692.27x = 18,395,741,329.26
  5. Step 5: Solve for x
    x = 18,395,741,329.26/156,692.27
  6. Step 6: Final answer
    x = 117,400.44

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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.