Home / 204,723.24-306,877.09-78,331.04

Finding the Fourth Proportional to 204,723.24, 306,877.09 and 78,331.04

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Solution

The fourth proportional to 204,723.24, 306,877.09 and 78,331.04 is: 117,417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,723.24 : 306,877.09 = 78,331.04 : x
  2. Step 2: Convert to fraction form
    204,723.24/306,877.09 = 78,331.04/x
  3. Step 3: Cross multiply
    204,723.24x = 306,877.09 × 78,331.04
  4. Step 4: Simplify right side
    204,723.24x = 24,038,001,611.87
  5. Step 5: Solve for x
    x = 24,038,001,611.87/204,723.24
  6. Step 6: Final answer
    x = 117,417.06

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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.