Home / 103,181.43-142,415.70-62,917.38

Finding the Fourth Proportional to 103,181.43, 142,415.70 and 62,917.38

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Solution

The fourth proportional to 103,181.43, 142,415.70 and 62,917.38 is: 86,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,181.43 : 142,415.70 = 62,917.38 : x
  2. Step 2: Convert to fraction form
    103,181.43/142,415.70 = 62,917.38/x
  3. Step 3: Cross multiply
    103,181.43x = 142,415.70 × 62,917.38
  4. Step 4: Simplify right side
    103,181.43x = 8,960,422,714.87
  5. Step 5: Solve for x
    x = 8,960,422,714.87/103,181.43
  6. Step 6: Final answer
    x = 86,841.43

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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.