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Finding the Fourth Proportional to 122,670.56, 183,999.36 and 39,564.56

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Solution

The fourth proportional to 122,670.56, 183,999.36 and 39,564.56 is: 59,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,670.56 : 183,999.36 = 39,564.56 : x
  2. Step 2: Convert to fraction form
    122,670.56/183,999.36 = 39,564.56/x
  3. Step 3: Cross multiply
    122,670.56x = 183,999.36 × 39,564.56
  4. Step 4: Simplify right side
    122,670.56x = 7,279,853,718.68
  5. Step 5: Solve for x
    x = 7,279,853,718.68/122,670.56
  6. Step 6: Final answer
    x = 59,344.75

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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.