Home / 131,751.81-197,168.04-107,782.29

Finding the Fourth Proportional to 131,751.81, 197,168.04 and 107,782.29

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Solution

The fourth proportional to 131,751.81, 197,168.04 and 107,782.29 is: 161,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.81 : 197,168.04 = 107,782.29 : x
  2. Step 2: Convert to fraction form
    131,751.81/197,168.04 = 107,782.29/x
  3. Step 3: Cross multiply
    131,751.81x = 197,168.04 × 107,782.29
  4. Step 4: Simplify right side
    131,751.81x = 21,251,222,866.01
  5. Step 5: Solve for x
    x = 21,251,222,866.01/131,751.81
  6. Step 6: Final answer
    x = 161,297.39

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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.