Home / 194,721.12-268,715.04-105,297.12

Finding the Fourth Proportional to 194,721.12, 268,715.04 and 105,297.12

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Solution

The fourth proportional to 194,721.12, 268,715.04 and 105,297.12 is: 145,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,721.12 : 268,715.04 = 105,297.12 : x
  2. Step 2: Convert to fraction form
    194,721.12/268,715.04 = 105,297.12/x
  3. Step 3: Cross multiply
    194,721.12x = 268,715.04 × 105,297.12
  4. Step 4: Simplify right side
    194,721.12x = 28,294,919,812.68
  5. Step 5: Solve for x
    x = 28,294,919,812.68/194,721.12
  6. Step 6: Final answer
    x = 145,309.97

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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.