Home / 130,736.80-196,131.12-51,836.32

Finding the Fourth Proportional to 130,736.80, 196,131.12 and 51,836.32

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Solution

The fourth proportional to 130,736.80, 196,131.12 and 51,836.32 is: 77,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,736.80 : 196,131.12 = 51,836.32 : x
  2. Step 2: Convert to fraction form
    130,736.80/196,131.12 = 51,836.32/x
  3. Step 3: Cross multiply
    130,736.80x = 196,131.12 × 51,836.32
  4. Step 4: Simplify right side
    130,736.80x = 10,166,715,498.28
  5. Step 5: Solve for x
    x = 10,166,715,498.28/130,736.80
  6. Step 6: Final answer
    x = 77,764.76

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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.