Home / 106,683.12-159,999.84-31,796.40

Finding the Fourth Proportional to 106,683.12, 159,999.84 and 31,796.40

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Solution

The fourth proportional to 106,683.12, 159,999.84 and 31,796.40 is: 47,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,683.12 : 159,999.84 = 31,796.40 : x
  2. Step 2: Convert to fraction form
    106,683.12/159,999.84 = 31,796.40/x
  3. Step 3: Cross multiply
    106,683.12x = 159,999.84 × 31,796.40
  4. Step 4: Simplify right side
    106,683.12x = 5,087,418,912.58
  5. Step 5: Solve for x
    x = 5,087,418,912.58/106,683.12
  6. Step 6: Final answer
    x = 47,687.20

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1.5x scale

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.