Home / 207,840.12-311,842.52-108,063.24

Finding the Fourth Proportional to 207,840.12, 311,842.52 and 108,063.24

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Solution

The fourth proportional to 207,840.12, 311,842.52 and 108,063.24 is: 162,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,840.12 : 311,842.52 = 108,063.24 : x
  2. Step 2: Convert to fraction form
    207,840.12/311,842.52 = 108,063.24/x
  3. Step 3: Cross multiply
    207,840.12x = 311,842.52 × 108,063.24
  4. Step 4: Simplify right side
    207,840.12x = 33,698,713,080.96
  5. Step 5: Solve for x
    x = 33,698,713,080.96/207,840.12
  6. Step 6: Final answer
    x = 162,137.67

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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.