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Finding the Fourth Proportional to 131,903.19, 197,856.72 and 41,959.78

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Solution

The fourth proportional to 131,903.19, 197,856.72 and 41,959.78 is: 62,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,903.19 : 197,856.72 = 41,959.78 : x
  2. Step 2: Convert to fraction form
    131,903.19/197,856.72 = 41,959.78/x
  3. Step 3: Cross multiply
    131,903.19x = 197,856.72 × 41,959.78
  4. Step 4: Simplify right side
    131,903.19x = 8,302,023,948.08
  5. Step 5: Solve for x
    x = 8,302,023,948.08/131,903.19
  6. Step 6: Final answer
    x = 62,940.28

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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.