Home / 103,190.58-154,785.90-68,122.04

Finding the Fourth Proportional to 103,190.58, 154,785.90 and 68,122.04

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Solution

The fourth proportional to 103,190.58, 154,785.90 and 68,122.04 is: 102,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,190.58 : 154,785.90 = 68,122.04 : x
  2. Step 2: Convert to fraction form
    103,190.58/154,785.90 = 68,122.04/x
  3. Step 3: Cross multiply
    103,190.58x = 154,785.90 × 68,122.04
  4. Step 4: Simplify right side
    103,190.58x = 10,544,331,271.24
  5. Step 5: Solve for x
    x = 10,544,331,271.24/103,190.58
  6. Step 6: Final answer
    x = 102,183.08

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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.