Home / 136,366.92-188,186.31-79,789.23

Finding the Fourth Proportional to 136,366.92, 188,186.31 and 79,789.23

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Solution

The fourth proportional to 136,366.92, 188,186.31 and 79,789.23 is: 110,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,366.92 : 188,186.31 = 79,789.23 : x
  2. Step 2: Convert to fraction form
    136,366.92/188,186.31 = 79,789.23/x
  3. Step 3: Cross multiply
    136,366.92x = 188,186.31 × 79,789.23
  4. Step 4: Simplify right side
    136,366.92x = 15,015,240,771.44
  5. Step 5: Solve for x
    x = 15,015,240,771.44/136,366.92
  6. Step 6: Final answer
    x = 110,109.11

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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.