Home / 103,216.26-142,431.54-57,893.78

Finding the Fourth Proportional to 103,216.26, 142,431.54 and 57,893.78

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Solution

The fourth proportional to 103,216.26, 142,431.54 and 57,893.78 is: 79,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,216.26 : 142,431.54 = 57,893.78 : x
  2. Step 2: Convert to fraction form
    103,216.26/142,431.54 = 57,893.78/x
  3. Step 3: Cross multiply
    103,216.26x = 142,431.54 × 57,893.78
  4. Step 4: Simplify right side
    103,216.26x = 8,245,900,241.82
  5. Step 5: Solve for x
    x = 8,245,900,241.82/103,216.26
  6. Step 6: Final answer
    x = 79,889.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.