Home / 131,751.72-181,771.94-74,383.88

Finding the Fourth Proportional to 131,751.72, 181,771.94 and 74,383.88

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Solution

The fourth proportional to 131,751.72, 181,771.94 and 74,383.88 is: 102,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.72 : 181,771.94 = 74,383.88 : x
  2. Step 2: Convert to fraction form
    131,751.72/181,771.94 = 74,383.88/x
  3. Step 3: Cross multiply
    131,751.72x = 181,771.94 × 74,383.88
  4. Step 4: Simplify right side
    131,751.72x = 13,520,902,172.33
  5. Step 5: Solve for x
    x = 13,520,902,172.33/131,751.72
  6. Step 6: Final answer
    x = 102,624.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.