Home / 212,438.68-293,163.78-116,947

Finding the Fourth Proportional to 212,438.68, 293,163.78 and 116,947

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Solution

The fourth proportional to 212,438.68, 293,163.78 and 116,947 is: 161,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,438.68 : 293,163.78 = 116,947 : x
  2. Step 2: Convert to fraction form
    212,438.68/293,163.78 = 116,947/x
  3. Step 3: Cross multiply
    212,438.68x = 293,163.78 × 116,947
  4. Step 4: Simplify right side
    212,438.68x = 34,284,624,579.66
  5. Step 5: Solve for x
    x = 34,284,624,579.66/212,438.68
  6. Step 6: Final answer
    x = 161,385.98

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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.