Home / 126,694.21-189,841.25-102,885.89

Finding the Fourth Proportional to 126,694.21, 189,841.25 and 102,885.89

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Solution

The fourth proportional to 126,694.21, 189,841.25 and 102,885.89 is: 154,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,694.21 : 189,841.25 = 102,885.89 : x
  2. Step 2: Convert to fraction form
    126,694.21/189,841.25 = 102,885.89/x
  3. Step 3: Cross multiply
    126,694.21x = 189,841.25 × 102,885.89
  4. Step 4: Simplify right side
    126,694.21x = 19,531,986,616.19
  5. Step 5: Solve for x
    x = 19,531,986,616.19/126,694.21
  6. Step 6: Final answer
    x = 154,166.38

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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.