Home / 120,500.85-166,291.19-66,789.33

Finding the Fourth Proportional to 120,500.85, 166,291.19 and 66,789.33

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Solution

The fourth proportional to 120,500.85, 166,291.19 and 66,789.33 is: 92,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,500.85 : 166,291.19 = 66,789.33 : x
  2. Step 2: Convert to fraction form
    120,500.85/166,291.19 = 66,789.33/x
  3. Step 3: Cross multiply
    120,500.85x = 166,291.19 × 66,789.33
  4. Step 4: Simplify right side
    120,500.85x = 11,106,477,165.00
  5. Step 5: Solve for x
    x = 11,106,477,165.00/120,500.85
  6. Step 6: Final answer
    x = 92,169.28

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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.