Home / 129,463.36-194,215.92-38,288

Finding the Fourth Proportional to 129,463.36, 194,215.92 and 38,288

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Solution

The fourth proportional to 129,463.36, 194,215.92 and 38,288 is: 57,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,463.36 : 194,215.92 = 38,288 : x
  2. Step 2: Convert to fraction form
    129,463.36/194,215.92 = 38,288/x
  3. Step 3: Cross multiply
    129,463.36x = 194,215.92 × 38,288
  4. Step 4: Simplify right side
    129,463.36x = 7,436,139,144.96
  5. Step 5: Solve for x
    x = 7,436,139,144.96/129,463.36
  6. Step 6: Final answer
    x = 57,438.18

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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.