Home / 103,424.64-142,734.60-60,991.44

Finding the Fourth Proportional to 103,424.64, 142,734.60 and 60,991.44

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Solution

The fourth proportional to 103,424.64, 142,734.60 and 60,991.44 is: 84,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424.64 : 142,734.60 = 60,991.44 : x
  2. Step 2: Convert to fraction form
    103,424.64/142,734.60 = 60,991.44/x
  3. Step 3: Cross multiply
    103,424.64x = 142,734.60 × 60,991.44
  4. Step 4: Simplify right side
    103,424.64x = 8,705,588,791.82
  5. Step 5: Solve for x
    x = 8,705,588,791.82/103,424.64
  6. Step 6: Final answer
    x = 84,173.26

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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.