Home / 269,943.58-405,161.97-136,915.66

Finding the Fourth Proportional to 269,943.58, 405,161.97 and 136,915.66

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Solution

The fourth proportional to 269,943.58, 405,161.97 and 136,915.66 is: 205,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,943.58 : 405,161.97 = 136,915.66 : x
  2. Step 2: Convert to fraction form
    269,943.58/405,161.97 = 136,915.66/x
  3. Step 3: Cross multiply
    269,943.58x = 405,161.97 × 136,915.66
  4. Step 4: Simplify right side
    269,943.58x = 55,473,018,529.45
  5. Step 5: Solve for x
    x = 55,473,018,529.45/269,943.58
  6. Step 6: Final answer
    x = 205,498.57

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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.