Home / 131,558.64-197,305.11-51,612.90

Finding the Fourth Proportional to 131,558.64, 197,305.11 and 51,612.90

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Solution

The fourth proportional to 131,558.64, 197,305.11 and 51,612.90 is: 77,406.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,558.64 : 197,305.11 = 51,612.90 : x
  2. Step 2: Convert to fraction form
    131,558.64/197,305.11 = 51,612.90/x
  3. Step 3: Cross multiply
    131,558.64x = 197,305.11 × 51,612.90
  4. Step 4: Simplify right side
    131,558.64x = 10,183,488,911.92
  5. Step 5: Solve for x
    x = 10,183,488,911.92/131,558.64
  6. Step 6: Final answer
    x = 77,406.46

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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.