Home / 103,865.66-155,743.12-53,895.44

Finding the Fourth Proportional to 103,865.66, 155,743.12 and 53,895.44

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Solution

The fourth proportional to 103,865.66, 155,743.12 and 53,895.44 is: 80,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,865.66 : 155,743.12 = 53,895.44 : x
  2. Step 2: Convert to fraction form
    103,865.66/155,743.12 = 53,895.44/x
  3. Step 3: Cross multiply
    103,865.66x = 155,743.12 × 53,895.44
  4. Step 4: Simplify right side
    103,865.66x = 8,393,844,436.10
  5. Step 5: Solve for x
    x = 8,393,844,436.10/103,865.66
  6. Step 6: Final answer
    x = 80,814.43

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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.