Home / 120,702.12-181,033.50-31,961.24

Finding the Fourth Proportional to 120,702.12, 181,033.50 and 31,961.24

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Solution

The fourth proportional to 120,702.12, 181,033.50 and 31,961.24 is: 47,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,702.12 : 181,033.50 = 31,961.24 : x
  2. Step 2: Convert to fraction form
    120,702.12/181,033.50 = 31,961.24/x
  3. Step 3: Cross multiply
    120,702.12x = 181,033.50 × 31,961.24
  4. Step 4: Simplify right side
    120,702.12x = 5,786,055,141.54
  5. Step 5: Solve for x
    x = 5,786,055,141.54/120,702.12
  6. Step 6: Final answer
    x = 47,936.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.