Home / 131,460.57-197,201.79-42,712.11

Finding the Fourth Proportional to 131,460.57, 197,201.79 and 42,712.11

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Solution

The fourth proportional to 131,460.57, 197,201.79 and 42,712.11 is: 64,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,460.57 : 197,201.79 = 42,712.11 : x
  2. Step 2: Convert to fraction form
    131,460.57/197,201.79 = 42,712.11/x
  3. Step 3: Cross multiply
    131,460.57x = 197,201.79 × 42,712.11
  4. Step 4: Simplify right side
    131,460.57x = 8,422,904,546.68
  5. Step 5: Solve for x
    x = 8,422,904,546.68/131,460.57
  6. Step 6: Final answer
    x = 64,071.72

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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.