Home / 103,629.10-143,002.64-61,172.14

Finding the Fourth Proportional to 103,629.10, 143,002.64 and 61,172.14

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Solution

The fourth proportional to 103,629.10, 143,002.64 and 61,172.14 is: 84,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.10 : 143,002.64 = 61,172.14 : x
  2. Step 2: Convert to fraction form
    103,629.10/143,002.64 = 61,172.14/x
  3. Step 3: Cross multiply
    103,629.10x = 143,002.64 × 61,172.14
  4. Step 4: Simplify right side
    103,629.10x = 8,747,777,514.45
  5. Step 5: Solve for x
    x = 8,747,777,514.45/103,629.10
  6. Step 6: Final answer
    x = 84,414.30

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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.