Home / 136,435.50-188,286.82-76,006.20

Finding the Fourth Proportional to 136,435.50, 188,286.82 and 76,006.20

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Solution

The fourth proportional to 136,435.50, 188,286.82 and 76,006.20 is: 104,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,435.50 : 188,286.82 = 76,006.20 : x
  2. Step 2: Convert to fraction form
    136,435.50/188,286.82 = 76,006.20/x
  3. Step 3: Cross multiply
    136,435.50x = 188,286.82 × 76,006.20
  4. Step 4: Simplify right side
    136,435.50x = 14,310,965,698.28
  5. Step 5: Solve for x
    x = 14,310,965,698.28/136,435.50
  6. Step 6: Final answer
    x = 104,891.80

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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.