Home / 105,918.33-158,899.38-31,040.93

Finding the Fourth Proportional to 105,918.33, 158,899.38 and 31,040.93

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Solution

The fourth proportional to 105,918.33, 158,899.38 and 31,040.93 is: 46,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,918.33 : 158,899.38 = 31,040.93 : x
  2. Step 2: Convert to fraction form
    105,918.33/158,899.38 = 31,040.93/x
  3. Step 3: Cross multiply
    105,918.33x = 158,899.38 × 31,040.93
  4. Step 4: Simplify right side
    105,918.33x = 4,932,383,737.13
  5. Step 5: Solve for x
    x = 4,932,383,737.13/105,918.33
  6. Step 6: Final answer
    x = 46,567.80

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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.