Home / 140,541.30-193,951.62-76,877.64

Finding the Fourth Proportional to 140,541.30, 193,951.62 and 76,877.64

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Solution

The fourth proportional to 140,541.30, 193,951.62 and 76,877.64 is: 106,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,541.30 : 193,951.62 = 76,877.64 : x
  2. Step 2: Convert to fraction form
    140,541.30/193,951.62 = 76,877.64/x
  3. Step 3: Cross multiply
    140,541.30x = 193,951.62 × 76,877.64
  4. Step 4: Simplify right side
    140,541.30x = 14,910,542,819.78
  5. Step 5: Solve for x
    x = 14,910,542,819.78/140,541.30
  6. Step 6: Final answer
    x = 106,093.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.