Home / 120,548.21-166,356.26-66,831.85

Finding the Fourth Proportional to 120,548.21, 166,356.26 and 66,831.85

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Solution

The fourth proportional to 120,548.21, 166,356.26 and 66,831.85 is: 92,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,548.21 : 166,356.26 = 66,831.85 : x
  2. Step 2: Convert to fraction form
    120,548.21/166,356.26 = 66,831.85/x
  3. Step 3: Cross multiply
    120,548.21x = 166,356.26 × 66,831.85
  4. Step 4: Simplify right side
    120,548.21x = 11,117,895,448.94
  5. Step 5: Solve for x
    x = 11,117,895,448.94/120,548.21
  6. Step 6: Final answer
    x = 92,227.79

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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.