Home / 121,017.14-166,990.87-67,293.48

Finding the Fourth Proportional to 121,017.14, 166,990.87 and 67,293.48

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Solution

The fourth proportional to 121,017.14, 166,990.87 and 67,293.48 is: 92,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,017.14 : 166,990.87 = 67,293.48 : x
  2. Step 2: Convert to fraction form
    121,017.14/166,990.87 = 67,293.48/x
  3. Step 3: Cross multiply
    121,017.14x = 166,990.87 × 67,293.48
  4. Step 4: Simplify right side
    121,017.14x = 11,237,397,102.33
  5. Step 5: Solve for x
    x = 11,237,397,102.33/121,017.14
  6. Step 6: Final answer
    x = 92,857.90

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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.