Home / 105,791.22-145,998.51-58,044.69

Finding the Fourth Proportional to 105,791.22, 145,998.51 and 58,044.69

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Solution

The fourth proportional to 105,791.22, 145,998.51 and 58,044.69 is: 80,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,791.22 : 145,998.51 = 58,044.69 : x
  2. Step 2: Convert to fraction form
    105,791.22/145,998.51 = 58,044.69/x
  3. Step 3: Cross multiply
    105,791.22x = 145,998.51 × 58,044.69
  4. Step 4: Simplify right side
    105,791.22x = 8,474,438,253.41
  5. Step 5: Solve for x
    x = 8,474,438,253.41/105,791.22
  6. Step 6: Final answer
    x = 80,105.31

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1.5x scale

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.