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Finding the Fourth Proportional to 126,361.56, 174,374.38 and 69,771.72

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Solution

The fourth proportional to 126,361.56, 174,374.38 and 69,771.72 is: 96,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,361.56 : 174,374.38 = 69,771.72 : x
  2. Step 2: Convert to fraction form
    126,361.56/174,374.38 = 69,771.72/x
  3. Step 3: Cross multiply
    126,361.56x = 174,374.38 × 69,771.72
  4. Step 4: Simplify right side
    126,361.56x = 12,166,400,416.53
  5. Step 5: Solve for x
    x = 12,166,400,416.53/126,361.56
  6. Step 6: Final answer
    x = 96,282.45

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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.