Home / 106,563.79-159,871.99-31,683.61

Finding the Fourth Proportional to 106,563.79, 159,871.99 and 31,683.61

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Solution

The fourth proportional to 106,563.79, 159,871.99 and 31,683.61 is: 47,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,563.79 : 159,871.99 = 31,683.61 : x
  2. Step 2: Convert to fraction form
    106,563.79/159,871.99 = 31,683.61/x
  3. Step 3: Cross multiply
    106,563.79x = 159,871.99 × 31,683.61
  4. Step 4: Simplify right side
    106,563.79x = 5,065,321,781.08
  5. Step 5: Solve for x
    x = 5,065,321,781.08/106,563.79
  6. Step 6: Final answer
    x = 47,533.24

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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.