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Finding the Fourth Proportional to 121,030, 167,027.32 and 67,313.87

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Solution

The fourth proportional to 121,030, 167,027.32 and 67,313.87 is: 92,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,030 : 167,027.32 = 67,313.87 : x
  2. Step 2: Convert to fraction form
    121,030/167,027.32 = 67,313.87/x
  3. Step 3: Cross multiply
    121,030x = 167,027.32 × 67,313.87
  4. Step 4: Simplify right side
    121,030x = 11,243,255,304.93
  5. Step 5: Solve for x
    x = 11,243,255,304.93/121,030
  6. Step 6: Final answer
    x = 92,896.43

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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.