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Finding the Fourth Proportional to 122,593.76, 183,890.64 and 39,487.76

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Solution

The fourth proportional to 122,593.76, 183,890.64 and 39,487.76 is: 59,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,593.76 : 183,890.64 = 39,487.76 : x
  2. Step 2: Convert to fraction form
    122,593.76/183,890.64 = 39,487.76/x
  3. Step 3: Cross multiply
    122,593.76x = 183,890.64 × 39,487.76
  4. Step 4: Simplify right side
    122,593.76x = 7,261,429,458.57
  5. Step 5: Solve for x
    x = 7,261,429,458.57/122,593.76
  6. Step 6: Final answer
    x = 59,231.64

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Similar ratio
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1.5x scale

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.