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Finding the Fourth Proportional to 111,224, 153,489.16 and 60,924.80

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Solution

The fourth proportional to 111,224, 153,489.16 and 60,924.80 is: 84,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,224 : 153,489.16 = 60,924.80 : x
  2. Step 2: Convert to fraction form
    111,224/153,489.16 = 60,924.80/x
  3. Step 3: Cross multiply
    111,224x = 153,489.16 × 60,924.80
  4. Step 4: Simplify right side
    111,224x = 9,351,296,375.17
  5. Step 5: Solve for x
    x = 9,351,296,375.17/111,224
  6. Step 6: Final answer
    x = 84,076.25

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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.