Home / 136,405.65-188,249.27-82,692.93

Finding the Fourth Proportional to 136,405.65, 188,249.27 and 82,692.93

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Solution

The fourth proportional to 136,405.65, 188,249.27 and 82,692.93 is: 114,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,405.65 : 188,249.27 = 82,692.93 : x
  2. Step 2: Convert to fraction form
    136,405.65/188,249.27 = 82,692.93/x
  3. Step 3: Cross multiply
    136,405.65x = 188,249.27 × 82,692.93
  4. Step 4: Simplify right side
    136,405.65x = 15,566,883,706.66
  5. Step 5: Solve for x
    x = 15,566,883,706.66/136,405.65
  6. Step 6: Final answer
    x = 114,121.99

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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.