Home / 131,930.72-197,876.98-43,187.76

Finding the Fourth Proportional to 131,930.72, 197,876.98 and 43,187.76

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Solution

The fourth proportional to 131,930.72, 197,876.98 and 43,187.76 is: 64,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,930.72 : 197,876.98 = 43,187.76 : x
  2. Step 2: Convert to fraction form
    131,930.72/197,876.98 = 43,187.76/x
  3. Step 3: Cross multiply
    131,930.72x = 197,876.98 × 43,187.76
  4. Step 4: Simplify right side
    131,930.72x = 8,545,863,521.76
  5. Step 5: Solve for x
    x = 8,545,863,521.76/131,930.72
  6. Step 6: Final answer
    x = 64,775.39

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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.