Home / 253,135.23-379,703.22-103,375.52

Finding the Fourth Proportional to 253,135.23, 379,703.22 and 103,375.52

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Solution

The fourth proportional to 253,135.23, 379,703.22 and 103,375.52 is: 155,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,135.23 : 379,703.22 = 103,375.52 : x
  2. Step 2: Convert to fraction form
    253,135.23/379,703.22 = 103,375.52/x
  3. Step 3: Cross multiply
    253,135.23x = 379,703.22 × 103,375.52
  4. Step 4: Simplify right side
    253,135.23x = 39,252,017,296.30
  5. Step 5: Solve for x
    x = 39,252,017,296.30/253,135.23
  6. Step 6: Final answer
    x = 155,063.43

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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.