Home / 131,068.20-196,602.30-120,930.60

Finding the Fourth Proportional to 131,068.20, 196,602.30 and 120,930.60

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Solution

The fourth proportional to 131,068.20, 196,602.30 and 120,930.60 is: 181,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,068.20 : 196,602.30 = 120,930.60 : x
  2. Step 2: Convert to fraction form
    131,068.20/196,602.30 = 120,930.60/x
  3. Step 3: Cross multiply
    131,068.20x = 196,602.30 × 120,930.60
  4. Step 4: Simplify right side
    131,068.20x = 23,775,234,100.38
  5. Step 5: Solve for x
    x = 23,775,234,100.38/131,068.20
  6. Step 6: Final answer
    x = 181,395.90

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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.