Home / 167,543.10-251,359.20-72,732.60

Finding the Fourth Proportional to 167,543.10, 251,359.20 and 72,732.60

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Solution

The fourth proportional to 167,543.10, 251,359.20 and 72,732.60 is: 109,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,543.10 : 251,359.20 = 72,732.60 : x
  2. Step 2: Convert to fraction form
    167,543.10/251,359.20 = 72,732.60/x
  3. Step 3: Cross multiply
    167,543.10x = 251,359.20 × 72,732.60
  4. Step 4: Simplify right side
    167,543.10x = 18,282,008,149.92
  5. Step 5: Solve for x
    x = 18,282,008,149.92/167,543.10
  6. Step 6: Final answer
    x = 109,118.24

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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.