Home / 204,368.91-306,574.27-78,115.43

Finding the Fourth Proportional to 204,368.91, 306,574.27 and 78,115.43

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Solution

The fourth proportional to 204,368.91, 306,574.27 and 78,115.43 is: 117,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,368.91 : 306,574.27 = 78,115.43 : x
  2. Step 2: Convert to fraction form
    204,368.91/306,574.27 = 78,115.43/x
  3. Step 3: Cross multiply
    204,368.91x = 306,574.27 × 78,115.43
  4. Step 4: Simplify right side
    204,368.91x = 23,948,179,199.83
  5. Step 5: Solve for x
    x = 23,948,179,199.83/204,368.91
  6. Step 6: Final answer
    x = 117,181.13

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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.