Home / 383,669.38-575,434.41-103,121.02

Finding the Fourth Proportional to 383,669.38, 575,434.41 and 103,121.02

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Solution

The fourth proportional to 383,669.38, 575,434.41 and 103,121.02 is: 154,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,669.38 : 575,434.41 = 103,121.02 : x
  2. Step 2: Convert to fraction form
    383,669.38/575,434.41 = 103,121.02/x
  3. Step 3: Cross multiply
    383,669.38x = 575,434.41 × 103,121.02
  4. Step 4: Simplify right side
    383,669.38x = 59,339,383,302.30
  5. Step 5: Solve for x
    x = 59,339,383,302.30/383,669.38
  6. Step 6: Final answer
    x = 154,662.81

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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.