Home / 131,134.56-180,815.94-107,783.88

Finding the Fourth Proportional to 131,134.56, 180,815.94 and 107,783.88

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Solution

The fourth proportional to 131,134.56, 180,815.94 and 107,783.88 is: 148,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,134.56 : 180,815.94 = 107,783.88 : x
  2. Step 2: Convert to fraction form
    131,134.56/180,815.94 = 107,783.88/x
  3. Step 3: Cross multiply
    131,134.56x = 180,815.94 × 107,783.88
  4. Step 4: Simplify right side
    131,134.56x = 19,489,043,579.05
  5. Step 5: Solve for x
    x = 19,489,043,579.05/131,134.56
  6. Step 6: Final answer
    x = 148,618.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.