Home / 129,918.82-194,890.62-36,424.30

Finding the Fourth Proportional to 129,918.82, 194,890.62 and 36,424.30

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Solution

The fourth proportional to 129,918.82, 194,890.62 and 36,424.30 is: 54,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.82 : 194,890.62 = 36,424.30 : x
  2. Step 2: Convert to fraction form
    129,918.82/194,890.62 = 36,424.30/x
  3. Step 3: Cross multiply
    129,918.82x = 194,890.62 × 36,424.30
  4. Step 4: Simplify right side
    129,918.82x = 7,098,754,410.07
  5. Step 5: Solve for x
    x = 7,098,754,410.07/129,918.82
  6. Step 6: Final answer
    x = 54,639.92

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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.