Home / 167,489.20-251,015.10-120,687.40

Finding the Fourth Proportional to 167,489.20, 251,015.10 and 120,687.40

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Solution

The fourth proportional to 167,489.20, 251,015.10 and 120,687.40 is: 180,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,489.20 : 251,015.10 = 120,687.40 : x
  2. Step 2: Convert to fraction form
    167,489.20/251,015.10 = 120,687.40/x
  3. Step 3: Cross multiply
    167,489.20x = 251,015.10 × 120,687.40
  4. Step 4: Simplify right side
    167,489.20x = 30,294,359,779.74
  5. Step 5: Solve for x
    x = 30,294,359,779.74/167,489.20
  6. Step 6: Final answer
    x = 180,873.51

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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.