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Finding the Fourth Proportional to 173,987.82, 260,585.13 and 103,721.90

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Solution

The fourth proportional to 173,987.82, 260,585.13 and 103,721.90 is: 155,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,987.82 : 260,585.13 = 103,721.90 : x
  2. Step 2: Convert to fraction form
    173,987.82/260,585.13 = 103,721.90/x
  3. Step 3: Cross multiply
    173,987.82x = 260,585.13 × 103,721.90
  4. Step 4: Simplify right side
    173,987.82x = 27,028,384,795.35
  5. Step 5: Solve for x
    x = 27,028,384,795.35/173,987.82
  6. Step 6: Final answer
    x = 155,346.42

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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.