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Finding the Fourth Proportional to 103,440.47, 155,160.47 and 27,539.03

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Solution

The fourth proportional to 103,440.47, 155,160.47 and 27,539.03 is: 41,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.47 : 155,160.47 = 27,539.03 : x
  2. Step 2: Convert to fraction form
    103,440.47/155,160.47 = 27,539.03/x
  3. Step 3: Cross multiply
    103,440.47x = 155,160.47 × 27,539.03
  4. Step 4: Simplify right side
    103,440.47x = 4,272,967,924.65
  5. Step 5: Solve for x
    x = 4,272,967,924.65/103,440.47
  6. Step 6: Final answer
    x = 41,308.48

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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.