Home / 142,186.65-213,115.92-53,383.52

Finding the Fourth Proportional to 142,186.65, 213,115.92 and 53,383.52

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Solution

The fourth proportional to 142,186.65, 213,115.92 and 53,383.52 is: 80,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,186.65 : 213,115.92 = 53,383.52 : x
  2. Step 2: Convert to fraction form
    142,186.65/213,115.92 = 53,383.52/x
  3. Step 3: Cross multiply
    142,186.65x = 213,115.92 × 53,383.52
  4. Step 4: Simplify right side
    142,186.65x = 11,376,876,912.06
  5. Step 5: Solve for x
    x = 11,376,876,912.06/142,186.65
  6. Step 6: Final answer
    x = 80,013.68

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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.