Home / 216,621.40-325,091.78-102,769.64

Finding the Fourth Proportional to 216,621.40, 325,091.78 and 102,769.64

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Solution

The fourth proportional to 216,621.40, 325,091.78 and 102,769.64 is: 154,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,621.40 : 325,091.78 = 102,769.64 : x
  2. Step 2: Convert to fraction form
    216,621.40/325,091.78 = 102,769.64/x
  3. Step 3: Cross multiply
    216,621.40x = 325,091.78 × 102,769.64
  4. Step 4: Simplify right side
    216,621.40x = 33,409,565,221.18
  5. Step 5: Solve for x
    x = 33,409,565,221.18/216,621.40
  6. Step 6: Final answer
    x = 154,230.21

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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.