Home / 204,046.70-305,851.35-77,638.10

Finding the Fourth Proportional to 204,046.70, 305,851.35 and 77,638.10

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Solution

The fourth proportional to 204,046.70, 305,851.35 and 77,638.10 is: 116,373.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,046.70 : 305,851.35 = 77,638.10 : x
  2. Step 2: Convert to fraction form
    204,046.70/305,851.35 = 77,638.10/x
  3. Step 3: Cross multiply
    204,046.70x = 305,851.35 × 77,638.10
  4. Step 4: Simplify right side
    204,046.70x = 23,745,717,696.44
  5. Step 5: Solve for x
    x = 23,745,717,696.44/204,046.70
  6. Step 6: Final answer
    x = 116,373.94

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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.