Home / 102,409.92-153,351.36-82,324.80

Finding the Fourth Proportional to 102,409.92, 153,351.36 and 82,324.80

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Solution

The fourth proportional to 102,409.92, 153,351.36 and 82,324.80 is: 123,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,409.92 : 153,351.36 = 82,324.80 : x
  2. Step 2: Convert to fraction form
    102,409.92/153,351.36 = 82,324.80/x
  3. Step 3: Cross multiply
    102,409.92x = 153,351.36 × 82,324.80
  4. Step 4: Simplify right side
    102,409.92x = 12,624,620,041.73
  5. Step 5: Solve for x
    x = 12,624,620,041.73/102,409.92
  6. Step 6: Final answer
    x = 123,275.36

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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.