Home / 131,698.64-197,467.96-51,640.69

Finding the Fourth Proportional to 131,698.64, 197,467.96 and 51,640.69

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Solution

The fourth proportional to 131,698.64, 197,467.96 and 51,640.69 is: 77,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,698.64 : 197,467.96 = 51,640.69 : x
  2. Step 2: Convert to fraction form
    131,698.64/197,467.96 = 51,640.69/x
  3. Step 3: Cross multiply
    131,698.64x = 197,467.96 × 51,640.69
  4. Step 4: Simplify right side
    131,698.64x = 10,197,381,084.52
  5. Step 5: Solve for x
    x = 10,197,381,084.52/131,698.64
  6. Step 6: Final answer
    x = 77,429.66

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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.