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Finding the Fourth Proportional to 188,520.52, 260,151.62 and 103,637

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Solution

The fourth proportional to 188,520.52, 260,151.62 and 103,637 is: 143,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,520.52 : 260,151.62 = 103,637 : x
  2. Step 2: Convert to fraction form
    188,520.52/260,151.62 = 103,637/x
  3. Step 3: Cross multiply
    188,520.52x = 260,151.62 × 103,637
  4. Step 4: Simplify right side
    188,520.52x = 26,961,333,441.94
  5. Step 5: Solve for x
    x = 26,961,333,441.94/188,520.52
  6. Step 6: Final answer
    x = 143,015.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.