Home / 207,770.21-311,544.54-107,829.77

Finding the Fourth Proportional to 207,770.21, 311,544.54 and 107,829.77

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Solution

The fourth proportional to 207,770.21, 311,544.54 and 107,829.77 is: 161,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,770.21 : 311,544.54 = 107,829.77 : x
  2. Step 2: Convert to fraction form
    207,770.21/311,544.54 = 107,829.77/x
  3. Step 3: Cross multiply
    207,770.21x = 311,544.54 × 107,829.77
  4. Step 4: Simplify right side
    207,770.21x = 33,593,776,871.82
  5. Step 5: Solve for x
    x = 33,593,776,871.82/207,770.21
  6. Step 6: Final answer
    x = 161,687.17

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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.