Home / 120,835.08-166,755.42-67,117.50

Finding the Fourth Proportional to 120,835.08, 166,755.42 and 67,117.50

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Solution

The fourth proportional to 120,835.08, 166,755.42 and 67,117.50 is: 92,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.08 : 166,755.42 = 67,117.50 : x
  2. Step 2: Convert to fraction form
    120,835.08/166,755.42 = 67,117.50/x
  3. Step 3: Cross multiply
    120,835.08x = 166,755.42 × 67,117.50
  4. Step 4: Simplify right side
    120,835.08x = 11,192,206,901.85
  5. Step 5: Solve for x
    x = 11,192,206,901.85/120,835.08
  6. Step 6: Final answer
    x = 92,623.82

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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.