Home / 112,945.80-169,418.70-111,196.20

Finding the Fourth Proportional to 112,945.80, 169,418.70 and 111,196.20

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Solution

The fourth proportional to 112,945.80, 169,418.70 and 111,196.20 is: 166,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,945.80 : 169,418.70 = 111,196.20 : x
  2. Step 2: Convert to fraction form
    112,945.80/169,418.70 = 111,196.20/x
  3. Step 3: Cross multiply
    112,945.80x = 169,418.70 × 111,196.20
  4. Step 4: Simplify right side
    112,945.80x = 18,838,715,648.94
  5. Step 5: Solve for x
    x = 18,838,715,648.94/112,945.80
  6. Step 6: Final answer
    x = 166,794.30

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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.