Home / 120,831.33-166,747.38-67,116.45

Finding the Fourth Proportional to 120,831.33, 166,747.38 and 67,116.45

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Solution

The fourth proportional to 120,831.33, 166,747.38 and 67,116.45 is: 92,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,831.33 : 166,747.38 = 67,116.45 : x
  2. Step 2: Convert to fraction form
    120,831.33/166,747.38 = 67,116.45/x
  3. Step 3: Cross multiply
    120,831.33x = 166,747.38 × 67,116.45
  4. Step 4: Simplify right side
    120,831.33x = 11,191,492,192.40
  5. Step 5: Solve for x
    x = 11,191,492,192.40/120,831.33
  6. Step 6: Final answer
    x = 92,620.78

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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.