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Finding the Fourth Proportional to 188,759.52, 260,493.30 and 103,881.78

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Solution

The fourth proportional to 188,759.52, 260,493.30 and 103,881.78 is: 143,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,759.52 : 260,493.30 = 103,881.78 : x
  2. Step 2: Convert to fraction form
    188,759.52/260,493.30 = 103,881.78/x
  3. Step 3: Cross multiply
    188,759.52x = 260,493.30 × 103,881.78
  4. Step 4: Simplify right side
    188,759.52x = 27,060,507,682.07
  5. Step 5: Solve for x
    x = 27,060,507,682.07/188,759.52
  6. Step 6: Final answer
    x = 143,359.70

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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.