Home / 212,732.22-319,136.29-70,586.03

Finding the Fourth Proportional to 212,732.22, 319,136.29 and 70,586.03

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Solution

The fourth proportional to 212,732.22, 319,136.29 and 70,586.03 is: 105,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,732.22 : 319,136.29 = 70,586.03 : x
  2. Step 2: Convert to fraction form
    212,732.22/319,136.29 = 70,586.03/x
  3. Step 3: Cross multiply
    212,732.22x = 319,136.29 × 70,586.03
  4. Step 4: Simplify right side
    212,732.22x = 22,526,564,361.40
  5. Step 5: Solve for x
    x = 22,526,564,361.40/212,732.22
  6. Step 6: Final answer
    x = 105,891.64

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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.