Home / 383,787.12-575,676.63-131,064.72

Finding the Fourth Proportional to 383,787.12, 575,676.63 and 131,064.72

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Solution

The fourth proportional to 383,787.12, 575,676.63 and 131,064.72 is: 196,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,787.12 : 575,676.63 = 131,064.72 : x
  2. Step 2: Convert to fraction form
    383,787.12/575,676.63 = 131,064.72/x
  3. Step 3: Cross multiply
    383,787.12x = 575,676.63 × 131,064.72
  4. Step 4: Simplify right side
    383,787.12x = 75,450,896,321.49
  5. Step 5: Solve for x
    x = 75,450,896,321.49/383,787.12
  6. Step 6: Final answer
    x = 196,595.70

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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.