Home / 103,893.26-155,844.59-31,840.97

Finding the Fourth Proportional to 103,893.26, 155,844.59 and 31,840.97

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Solution

The fourth proportional to 103,893.26, 155,844.59 and 31,840.97 is: 47,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,893.26 : 155,844.59 = 31,840.97 : x
  2. Step 2: Convert to fraction form
    103,893.26/155,844.59 = 31,840.97/x
  3. Step 3: Cross multiply
    103,893.26x = 155,844.59 × 31,840.97
  4. Step 4: Simplify right side
    103,893.26x = 4,962,241,976.42
  5. Step 5: Solve for x
    x = 4,962,241,976.42/103,893.26
  6. Step 6: Final answer
    x = 47,762.89

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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.