Home / 120,541.43-166,351.10-66,831.44

Finding the Fourth Proportional to 120,541.43, 166,351.10 and 66,831.44

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Solution

The fourth proportional to 120,541.43, 166,351.10 and 66,831.44 is: 92,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,541.43 : 166,351.10 = 66,831.44 : x
  2. Step 2: Convert to fraction form
    120,541.43/166,351.10 = 66,831.44/x
  3. Step 3: Cross multiply
    120,541.43x = 166,351.10 × 66,831.44
  4. Step 4: Simplify right side
    120,541.43x = 11,117,482,392.67
  5. Step 5: Solve for x
    x = 11,117,482,392.67/120,541.43
  6. Step 6: Final answer
    x = 92,229.56

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1.5x scale

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.