Home / 122,241.11-168,693.30-71,289.18

Finding the Fourth Proportional to 122,241.11, 168,693.30 and 71,289.18

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Solution

The fourth proportional to 122,241.11, 168,693.30 and 71,289.18 is: 98,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,241.11 : 168,693.30 = 71,289.18 : x
  2. Step 2: Convert to fraction form
    122,241.11/168,693.30 = 71,289.18/x
  3. Step 3: Cross multiply
    122,241.11x = 168,693.30 × 71,289.18
  4. Step 4: Simplify right side
    122,241.11x = 12,026,007,028.49
  5. Step 5: Solve for x
    x = 12,026,007,028.49/122,241.11
  6. Step 6: Final answer
    x = 98,379.40

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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.