Home / 212,540.46-319,166.06-132,764.16

Finding the Fourth Proportional to 212,540.46, 319,166.06 and 132,764.16

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Solution

The fourth proportional to 212,540.46, 319,166.06 and 132,764.16 is: 199,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,540.46 : 319,166.06 = 132,764.16 : x
  2. Step 2: Convert to fraction form
    212,540.46/319,166.06 = 132,764.16/x
  3. Step 3: Cross multiply
    212,540.46x = 319,166.06 × 132,764.16
  4. Step 4: Simplify right side
    212,540.46x = 42,373,814,389.46
  5. Step 5: Solve for x
    x = 42,373,814,389.46/212,540.46
  6. Step 6: Final answer
    x = 199,368.23

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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.