Home / 120,704.18-166,571.94-66,987.81

Finding the Fourth Proportional to 120,704.18, 166,571.94 and 66,987.81

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Solution

The fourth proportional to 120,704.18, 166,571.94 and 66,987.81 is: 92,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,704.18 : 166,571.94 = 66,987.81 : x
  2. Step 2: Convert to fraction form
    120,704.18/166,571.94 = 66,987.81/x
  3. Step 3: Cross multiply
    120,704.18x = 166,571.94 × 66,987.81
  4. Step 4: Simplify right side
    120,704.18x = 11,158,289,719.26
  5. Step 5: Solve for x
    x = 11,158,289,719.26/120,704.18
  6. Step 6: Final answer
    x = 92,443.28

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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.