Home / 103,714.74-143,128.32-61,273.26

Finding the Fourth Proportional to 103,714.74, 143,128.32 and 61,273.26

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Solution

The fourth proportional to 103,714.74, 143,128.32 and 61,273.26 is: 84,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,714.74 : 143,128.32 = 61,273.26 : x
  2. Step 2: Convert to fraction form
    103,714.74/143,128.32 = 61,273.26/x
  3. Step 3: Cross multiply
    103,714.74x = 143,128.32 × 61,273.26
  4. Step 4: Simplify right side
    103,714.74x = 8,769,938,764.72
  5. Step 5: Solve for x
    x = 8,769,938,764.72/103,714.74
  6. Step 6: Final answer
    x = 84,558.27

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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.