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Finding the Fourth Proportional to 170,365.87, 255,355.08 and 103,659

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Solution

The fourth proportional to 170,365.87, 255,355.08 and 103,659 is: 155,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,365.87 : 255,355.08 = 103,659 : x
  2. Step 2: Convert to fraction form
    170,365.87/255,355.08 = 103,659/x
  3. Step 3: Cross multiply
    170,365.87x = 255,355.08 × 103,659
  4. Step 4: Simplify right side
    170,365.87x = 26,469,852,237.72
  5. Step 5: Solve for x
    x = 26,469,852,237.72/170,365.87
  6. Step 6: Final answer
    x = 155,370.63

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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.