Home / 156,951.73-216,590.98-85,331.12

Finding the Fourth Proportional to 156,951.73, 216,590.98 and 85,331.12

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Solution

The fourth proportional to 156,951.73, 216,590.98 and 85,331.12 is: 117,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,951.73 : 216,590.98 = 85,331.12 : x
  2. Step 2: Convert to fraction form
    156,951.73/216,590.98 = 85,331.12/x
  3. Step 3: Cross multiply
    156,951.73x = 216,590.98 × 85,331.12
  4. Step 4: Simplify right side
    156,951.73x = 18,481,950,905.30
  5. Step 5: Solve for x
    x = 18,481,950,905.30/156,951.73
  6. Step 6: Final answer
    x = 117,755.64

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1.5x scale

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.