Home / 187,561.78-281,371.88-61,172.59

Finding the Fourth Proportional to 187,561.78, 281,371.88 and 61,172.59

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Solution

The fourth proportional to 187,561.78, 281,371.88 and 61,172.59 is: 91,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,561.78 : 281,371.88 = 61,172.59 : x
  2. Step 2: Convert to fraction form
    187,561.78/281,371.88 = 61,172.59/x
  3. Step 3: Cross multiply
    187,561.78x = 281,371.88 × 61,172.59
  4. Step 4: Simplify right side
    187,561.78x = 17,212,247,077.11
  5. Step 5: Solve for x
    x = 17,212,247,077.11/187,561.78
  6. Step 6: Final answer
    x = 91,768.42

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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.