Home / 123,964.78-171,072.53-67,376.29

Finding the Fourth Proportional to 123,964.78, 171,072.53 and 67,376.29

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Solution

The fourth proportional to 123,964.78, 171,072.53 and 67,376.29 is: 92,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,964.78 : 171,072.53 = 67,376.29 : x
  2. Step 2: Convert to fraction form
    123,964.78/171,072.53 = 67,376.29/x
  3. Step 3: Cross multiply
    123,964.78x = 171,072.53 × 67,376.29
  4. Step 4: Simplify right side
    123,964.78x = 11,526,232,392.31
  5. Step 5: Solve for x
    x = 11,526,232,392.31/123,964.78
  6. Step 6: Final answer
    x = 92,979.90

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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.