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Finding the Fourth Proportional to 103,467.53, 155,122.63 and 53,515.82

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Solution

The fourth proportional to 103,467.53, 155,122.63 and 53,515.82 is: 80,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,467.53 : 155,122.63 = 53,515.82 : x
  2. Step 2: Convert to fraction form
    103,467.53/155,122.63 = 53,515.82/x
  3. Step 3: Cross multiply
    103,467.53x = 155,122.63 × 53,515.82
  4. Step 4: Simplify right side
    103,467.53x = 8,301,514,999.02
  5. Step 5: Solve for x
    x = 8,301,514,999.02/103,467.53
  6. Step 6: Final answer
    x = 80,233.04

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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.