Home / 212,755.44-319,180.47-92,831.83

Finding the Fourth Proportional to 212,755.44, 319,180.47 and 92,831.83

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Solution

The fourth proportional to 212,755.44, 319,180.47 and 92,831.83 is: 139,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,755.44 : 319,180.47 = 92,831.83 : x
  2. Step 2: Convert to fraction form
    212,755.44/319,180.47 = 92,831.83/x
  3. Step 3: Cross multiply
    212,755.44x = 319,180.47 × 92,831.83
  4. Step 4: Simplify right side
    212,755.44x = 29,630,107,130.36
  5. Step 5: Solve for x
    x = 29,630,107,130.36/212,755.44
  6. Step 6: Final answer
    x = 139,268.39

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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.