Home / 149,144.26-205,818.71-81,161.22

Finding the Fourth Proportional to 149,144.26, 205,818.71 and 81,161.22

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Solution

The fourth proportional to 149,144.26, 205,818.71 and 81,161.22 is: 112,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,144.26 : 205,818.71 = 81,161.22 : x
  2. Step 2: Convert to fraction form
    149,144.26/205,818.71 = 81,161.22/x
  3. Step 3: Cross multiply
    149,144.26x = 205,818.71 × 81,161.22
  4. Step 4: Simplify right side
    149,144.26x = 16,704,497,602.43
  5. Step 5: Solve for x
    x = 16,704,497,602.43/149,144.26
  6. Step 6: Final answer
    x = 112,002.28

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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.