Home / 105,679.20-158,540.40-35,565.60

Finding the Fourth Proportional to 105,679.20, 158,540.40 and 35,565.60

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Solution

The fourth proportional to 105,679.20, 158,540.40 and 35,565.60 is: 53,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,679.20 : 158,540.40 = 35,565.60 : x
  2. Step 2: Convert to fraction form
    105,679.20/158,540.40 = 35,565.60/x
  3. Step 3: Cross multiply
    105,679.20x = 158,540.40 × 35,565.60
  4. Step 4: Simplify right side
    105,679.20x = 5,638,584,450.24
  5. Step 5: Solve for x
    x = 5,638,584,450.24/105,679.20
  6. Step 6: Final answer
    x = 53,355.67

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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.