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Finding the Fourth Proportional to 103,671.86, 143,067.42 and 58,350.51

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Solution

The fourth proportional to 103,671.86, 143,067.42 and 58,350.51 is: 80,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.86 : 143,067.42 = 58,350.51 : x
  2. Step 2: Convert to fraction form
    103,671.86/143,067.42 = 58,350.51/x
  3. Step 3: Cross multiply
    103,671.86x = 143,067.42 × 58,350.51
  4. Step 4: Simplify right side
    103,671.86x = 8,348,056,921.38
  5. Step 5: Solve for x
    x = 8,348,056,921.38/103,671.86
  6. Step 6: Final answer
    x = 80,523.85

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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.