Home / 105,917.96-158,898.81-31,040.55

Finding the Fourth Proportional to 105,917.96, 158,898.81 and 31,040.55

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Solution

The fourth proportional to 105,917.96, 158,898.81 and 31,040.55 is: 46,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,917.96 : 158,898.81 = 31,040.55 : x
  2. Step 2: Convert to fraction form
    105,917.96/158,898.81 = 31,040.55/x
  3. Step 3: Cross multiply
    105,917.96x = 158,898.81 × 31,040.55
  4. Step 4: Simplify right side
    105,917.96x = 4,932,306,456.75
  5. Step 5: Solve for x
    x = 4,932,306,456.75/105,917.96
  6. Step 6: Final answer
    x = 46,567.23

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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.