Home / 131,172.20-197,195.70-111,926.60

Finding the Fourth Proportional to 131,172.20, 197,195.70 and 111,926.60

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Solution

The fourth proportional to 131,172.20, 197,195.70 and 111,926.60 is: 168,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,172.20 : 197,195.70 = 111,926.60 : x
  2. Step 2: Convert to fraction form
    131,172.20/197,195.70 = 111,926.60/x
  3. Step 3: Cross multiply
    131,172.20x = 197,195.70 × 111,926.60
  4. Step 4: Simplify right side
    131,172.20x = 22,071,444,235.62
  5. Step 5: Solve for x
    x = 22,071,444,235.62/131,172.20
  6. Step 6: Final answer
    x = 168,263.12

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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.