Home / 253,083.42-379,481.36-103,148.10

Finding the Fourth Proportional to 253,083.42, 379,481.36 and 103,148.10

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Solution

The fourth proportional to 253,083.42, 379,481.36 and 103,148.10 is: 154,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,083.42 : 379,481.36 = 103,148.10 : x
  2. Step 2: Convert to fraction form
    253,083.42/379,481.36 = 103,148.10/x
  3. Step 3: Cross multiply
    253,083.42x = 379,481.36 × 103,148.10
  4. Step 4: Simplify right side
    253,083.42x = 39,142,780,753.68
  5. Step 5: Solve for x
    x = 39,142,780,753.68/253,083.42
  6. Step 6: Final answer
    x = 154,663.55

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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.