Home / 136,377.69-188,218.37-82,655.86

Finding the Fourth Proportional to 136,377.69, 188,218.37 and 82,655.86

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Solution

The fourth proportional to 136,377.69, 188,218.37 and 82,655.86 is: 114,075.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,377.69 : 188,218.37 = 82,655.86 : x
  2. Step 2: Convert to fraction form
    136,377.69/188,218.37 = 82,655.86/x
  3. Step 3: Cross multiply
    136,377.69x = 188,218.37 × 82,655.86
  4. Step 4: Simplify right side
    136,377.69x = 15,557,351,240.15
  5. Step 5: Solve for x
    x = 15,557,351,240.15/136,377.69
  6. Step 6: Final answer
    x = 114,075.49

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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.