Home / 102,114.57-140,918.22-56,791.44

Finding the Fourth Proportional to 102,114.57, 140,918.22 and 56,791.44

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Solution

The fourth proportional to 102,114.57, 140,918.22 and 56,791.44 is: 78,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,114.57 : 140,918.22 = 56,791.44 : x
  2. Step 2: Convert to fraction form
    102,114.57/140,918.22 = 56,791.44/x
  3. Step 3: Cross multiply
    102,114.57x = 140,918.22 × 56,791.44
  4. Step 4: Simplify right side
    102,114.57x = 8,002,948,636.04
  5. Step 5: Solve for x
    x = 8,002,948,636.04/102,114.57
  6. Step 6: Final answer
    x = 78,372.25

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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.