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Finding the Fourth Proportional to 111,361.60, 167,042.40 and 81,837.10

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Solution

The fourth proportional to 111,361.60, 167,042.40 and 81,837.10 is: 122,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,361.60 : 167,042.40 = 81,837.10 : x
  2. Step 2: Convert to fraction form
    111,361.60/167,042.40 = 81,837.10/x
  3. Step 3: Cross multiply
    111,361.60x = 167,042.40 × 81,837.10
  4. Step 4: Simplify right side
    111,361.60x = 13,670,265,593.04
  5. Step 5: Solve for x
    x = 13,670,265,593.04/111,361.60
  6. Step 6: Final answer
    x = 122,755.65

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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.