Home / 212,664.21-318,695.40-117,936.06

Finding the Fourth Proportional to 212,664.21, 318,695.40 and 117,936.06

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Solution

The fourth proportional to 212,664.21, 318,695.40 and 117,936.06 is: 176,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,664.21 : 318,695.40 = 117,936.06 : x
  2. Step 2: Convert to fraction form
    212,664.21/318,695.40 = 117,936.06/x
  3. Step 3: Cross multiply
    212,664.21x = 318,695.40 × 117,936.06
  4. Step 4: Simplify right side
    212,664.21x = 37,585,679,816.12
  5. Step 5: Solve for x
    x = 37,585,679,816.12/212,664.21
  6. Step 6: Final answer
    x = 176,737.21

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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.