Home / 103,568.20-155,352.30-92,742.55

Finding the Fourth Proportional to 103,568.20, 155,352.30 and 92,742.55

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Solution

The fourth proportional to 103,568.20, 155,352.30 and 92,742.55 is: 139,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,568.20 : 155,352.30 = 92,742.55 : x
  2. Step 2: Convert to fraction form
    103,568.20/155,352.30 = 92,742.55/x
  3. Step 3: Cross multiply
    103,568.20x = 155,352.30 × 92,742.55
  4. Step 4: Simplify right side
    103,568.20x = 14,407,768,450.37
  5. Step 5: Solve for x
    x = 14,407,768,450.37/103,568.20
  6. Step 6: Final answer
    x = 139,113.83

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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.