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Finding the Fourth Proportional to 103,774.98, 155,558.53 and 40,508.11

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Solution

The fourth proportional to 103,774.98, 155,558.53 and 40,508.11 is: 60,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,774.98 : 155,558.53 = 40,508.11 : x
  2. Step 2: Convert to fraction form
    103,774.98/155,558.53 = 40,508.11/x
  3. Step 3: Cross multiply
    103,774.98x = 155,558.53 × 40,508.11
  4. Step 4: Simplify right side
    103,774.98x = 6,301,382,044.68
  5. Step 5: Solve for x
    x = 6,301,382,044.68/103,774.98
  6. Step 6: Final answer
    x = 60,721.59

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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.