Home / 212,812.20-293,694.06-117,318.72

Finding the Fourth Proportional to 212,812.20, 293,694.06 and 117,318.72

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Solution

The fourth proportional to 212,812.20, 293,694.06 and 117,318.72 is: 161,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,812.20 : 293,694.06 = 117,318.72 : x
  2. Step 2: Convert to fraction form
    212,812.20/293,694.06 = 117,318.72/x
  3. Step 3: Cross multiply
    212,812.20x = 293,694.06 × 117,318.72
  4. Step 4: Simplify right side
    212,812.20x = 34,455,811,190.80
  5. Step 5: Solve for x
    x = 34,455,811,190.80/212,812.20
  6. Step 6: Final answer
    x = 161,907.12

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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.