Home / 106,465.25-159,724.88-39,905.57

Finding the Fourth Proportional to 106,465.25, 159,724.88 and 39,905.57

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Solution

The fourth proportional to 106,465.25, 159,724.88 and 39,905.57 is: 59,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,465.25 : 159,724.88 = 39,905.57 : x
  2. Step 2: Convert to fraction form
    106,465.25/159,724.88 = 39,905.57/x
  3. Step 3: Cross multiply
    106,465.25x = 159,724.88 × 39,905.57
  4. Step 4: Simplify right side
    106,465.25x = 6,373,912,379.58
  5. Step 5: Solve for x
    x = 6,373,912,379.58/106,465.25
  6. Step 6: Final answer
    x = 59,868.48

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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.