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Finding the Fourth Proportional to 122,502.60, 183,753.90 and 39,396.60

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Solution

The fourth proportional to 122,502.60, 183,753.90 and 39,396.60 is: 59,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,502.60 : 183,753.90 = 39,396.60 : x
  2. Step 2: Convert to fraction form
    122,502.60/183,753.90 = 39,396.60/x
  3. Step 3: Cross multiply
    122,502.60x = 183,753.90 × 39,396.60
  4. Step 4: Simplify right side
    122,502.60x = 7,239,278,896.74
  5. Step 5: Solve for x
    x = 7,239,278,896.74/122,502.60
  6. Step 6: Final answer
    x = 59,094.90

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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.