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Finding the Fourth Proportional to 148,680.96, 205,086.39 and 88,208.79

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Solution

The fourth proportional to 148,680.96, 205,086.39 and 88,208.79 is: 121,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,680.96 : 205,086.39 = 88,208.79 : x
  2. Step 2: Convert to fraction form
    148,680.96/205,086.39 = 88,208.79/x
  3. Step 3: Cross multiply
    148,680.96x = 205,086.39 × 88,208.79
  4. Step 4: Simplify right side
    148,680.96x = 18,090,422,307.37
  5. Step 5: Solve for x
    x = 18,090,422,307.37/148,680.96
  6. Step 6: Final answer
    x = 121,672.76

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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.