Home / 187,839.78-281,870.24-69,593.56

Finding the Fourth Proportional to 187,839.78, 281,870.24 and 69,593.56

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Solution

The fourth proportional to 187,839.78, 281,870.24 and 69,593.56 is: 104,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.78 : 281,870.24 = 69,593.56 : x
  2. Step 2: Convert to fraction form
    187,839.78/281,870.24 = 69,593.56/x
  3. Step 3: Cross multiply
    187,839.78x = 281,870.24 × 69,593.56
  4. Step 4: Simplify right side
    187,839.78x = 19,616,353,459.65
  5. Step 5: Solve for x
    x = 19,616,353,459.65/187,839.78
  6. Step 6: Final answer
    x = 104,431.31

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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.