Home / 383,939.11-575,843.05-103,390.75

Finding the Fourth Proportional to 383,939.11, 575,843.05 and 103,390.75

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Solution

The fourth proportional to 383,939.11, 575,843.05 and 103,390.75 is: 155,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,939.11 : 575,843.05 = 103,390.75 : x
  2. Step 2: Convert to fraction form
    383,939.11/575,843.05 = 103,390.75/x
  3. Step 3: Cross multiply
    383,939.11x = 575,843.05 × 103,390.75
  4. Step 4: Simplify right side
    383,939.11x = 59,536,844,821.79
  5. Step 5: Solve for x
    x = 59,536,844,821.79/383,939.11
  6. Step 6: Final answer
    x = 155,068.46

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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.