Home / 383,821.44-575,739.36-131,159.76

Finding the Fourth Proportional to 383,821.44, 575,739.36 and 131,159.76

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Solution

The fourth proportional to 383,821.44, 575,739.36 and 131,159.76 is: 196,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,821.44 : 575,739.36 = 131,159.76 : x
  2. Step 2: Convert to fraction form
    383,821.44/575,739.36 = 131,159.76/x
  3. Step 3: Cross multiply
    383,821.44x = 575,739.36 × 131,159.76
  4. Step 4: Simplify right side
    383,821.44x = 75,513,836,280.15
  5. Step 5: Solve for x
    x = 75,513,836,280.15/383,821.44
  6. Step 6: Final answer
    x = 196,742.10

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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.