Home / 130,764.87-196,118.15-51,857.91

Finding the Fourth Proportional to 130,764.87, 196,118.15 and 51,857.91

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Solution

The fourth proportional to 130,764.87, 196,118.15 and 51,857.91 is: 77,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,764.87 : 196,118.15 = 51,857.91 : x
  2. Step 2: Convert to fraction form
    130,764.87/196,118.15 = 51,857.91/x
  3. Step 3: Cross multiply
    130,764.87x = 196,118.15 × 51,857.91
  4. Step 4: Simplify right side
    130,764.87x = 10,170,277,112.78
  5. Step 5: Solve for x
    x = 10,170,277,112.78/130,764.87
  6. Step 6: Final answer
    x = 77,775.30

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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.