Home / 103,025.20-154,683.60-80,863.60

Finding the Fourth Proportional to 103,025.20, 154,683.60 and 80,863.60

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Solution

The fourth proportional to 103,025.20, 154,683.60 and 80,863.60 is: 121,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,025.20 : 154,683.60 = 80,863.60 : x
  2. Step 2: Convert to fraction form
    103,025.20/154,683.60 = 80,863.60/x
  3. Step 3: Cross multiply
    103,025.20x = 154,683.60 × 80,863.60
  4. Step 4: Simplify right side
    103,025.20x = 12,508,272,756.96
  5. Step 5: Solve for x
    x = 12,508,272,756.96/103,025.20
  6. Step 6: Final answer
    x = 121,409.84

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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.