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Finding the Fourth Proportional to 131,595.91, 197,469.11 and 55,688.47

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Solution

The fourth proportional to 131,595.91, 197,469.11 and 55,688.47 is: 83,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,595.91 : 197,469.11 = 55,688.47 : x
  2. Step 2: Convert to fraction form
    131,595.91/197,469.11 = 55,688.47/x
  3. Step 3: Cross multiply
    131,595.91x = 197,469.11 × 55,688.47
  4. Step 4: Simplify right side
    131,595.91x = 10,996,752,608.16
  5. Step 5: Solve for x
    x = 10,996,752,608.16/131,595.91
  6. Step 6: Final answer
    x = 83,564.55

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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.