Home / 103,916-143,418.12-58,603.28

Finding the Fourth Proportional to 103,916, 143,418.12 and 58,603.28

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Solution

The fourth proportional to 103,916, 143,418.12 and 58,603.28 is: 80,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,916 : 143,418.12 = 58,603.28 : x
  2. Step 2: Convert to fraction form
    103,916/143,418.12 = 58,603.28/x
  3. Step 3: Cross multiply
    103,916x = 143,418.12 × 58,603.28
  4. Step 4: Simplify right side
    103,916x = 8,404,772,243.43
  5. Step 5: Solve for x
    x = 8,404,772,243.43/103,916
  6. Step 6: Final answer
    x = 80,880.44

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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.