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Finding the Fourth Proportional to 188,275.88, 259,822.53 and 103,394.76

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Solution

The fourth proportional to 188,275.88, 259,822.53 and 103,394.76 is: 142,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,275.88 : 259,822.53 = 103,394.76 : x
  2. Step 2: Convert to fraction form
    188,275.88/259,822.53 = 103,394.76/x
  3. Step 3: Cross multiply
    188,275.88x = 259,822.53 × 103,394.76
  4. Step 4: Simplify right side
    188,275.88x = 26,864,288,131.94
  5. Step 5: Solve for x
    x = 26,864,288,131.94/188,275.88
  6. Step 6: Final answer
    x = 142,685.77

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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.