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Finding the Fourth Proportional to 188,493.08, 260,117.53 and 103,608.32

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Solution

The fourth proportional to 188,493.08, 260,117.53 and 103,608.32 is: 142,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,493.08 : 260,117.53 = 103,608.32 : x
  2. Step 2: Convert to fraction form
    188,493.08/260,117.53 = 103,608.32/x
  3. Step 3: Cross multiply
    188,493.08x = 260,117.53 × 103,608.32
  4. Step 4: Simplify right side
    188,493.08x = 26,950,338,726.24
  5. Step 5: Solve for x
    x = 26,950,338,726.24/188,493.08
  6. Step 6: Final answer
    x = 142,977.87

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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.