Home / 387,142.72-580,716.96-106,675.36

Finding the Fourth Proportional to 387,142.72, 580,716.96 and 106,675.36

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Solution

The fourth proportional to 387,142.72, 580,716.96 and 106,675.36 is: 160,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,142.72 : 580,716.96 = 106,675.36 : x
  2. Step 2: Convert to fraction form
    387,142.72/580,716.96 = 106,675.36/x
  3. Step 3: Cross multiply
    387,142.72x = 580,716.96 × 106,675.36
  4. Step 4: Simplify right side
    387,142.72x = 61,948,190,766.11
  5. Step 5: Solve for x
    x = 61,948,190,766.11/387,142.72
  6. Step 6: Final answer
    x = 160,013.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.