Home / 194,431.49-268,323.72-108,390.45

Finding the Fourth Proportional to 194,431.49, 268,323.72 and 108,390.45

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Solution

The fourth proportional to 194,431.49, 268,323.72 and 108,390.45 is: 149,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,431.49 : 268,323.72 = 108,390.45 : x
  2. Step 2: Convert to fraction form
    194,431.49/268,323.72 = 108,390.45/x
  3. Step 3: Cross multiply
    194,431.49x = 268,323.72 × 108,390.45
  4. Step 4: Simplify right side
    194,431.49x = 29,083,728,756.47
  5. Step 5: Solve for x
    x = 29,083,728,756.47/194,431.49
  6. Step 6: Final answer
    x = 149,583.43

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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.