Home / 131,640.69-197,481.53-42,873.54

Finding the Fourth Proportional to 131,640.69, 197,481.53 and 42,873.54

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Solution

The fourth proportional to 131,640.69, 197,481.53 and 42,873.54 is: 64,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,640.69 : 197,481.53 = 42,873.54 : x
  2. Step 2: Convert to fraction form
    131,640.69/197,481.53 = 42,873.54/x
  3. Step 3: Cross multiply
    131,640.69x = 197,481.53 × 42,873.54
  4. Step 4: Simplify right side
    131,640.69x = 8,466,732,275.72
  5. Step 5: Solve for x
    x = 8,466,732,275.72/131,640.69
  6. Step 6: Final answer
    x = 64,316.98

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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.