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Finding the Fourth Proportional to 121,930.61, 182,770.20 and 50,894.58

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Solution

The fourth proportional to 121,930.61, 182,770.20 and 50,894.58 is: 76,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,930.61 : 182,770.20 = 50,894.58 : x
  2. Step 2: Convert to fraction form
    121,930.61/182,770.20 = 50,894.58/x
  3. Step 3: Cross multiply
    121,930.61x = 182,770.20 × 50,894.58
  4. Step 4: Simplify right side
    121,930.61x = 9,302,012,565.52
  5. Step 5: Solve for x
    x = 9,302,012,565.52/121,930.61
  6. Step 6: Final answer
    x = 76,289.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.