Home / 120,475.03-166,261.80-66,766.09

Finding the Fourth Proportional to 120,475.03, 166,261.80 and 66,766.09

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Solution

The fourth proportional to 120,475.03, 166,261.80 and 66,766.09 is: 92,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.03 : 166,261.80 = 66,766.09 : x
  2. Step 2: Convert to fraction form
    120,475.03/166,261.80 = 66,766.09/x
  3. Step 3: Cross multiply
    120,475.03x = 166,261.80 × 66,766.09
  4. Step 4: Simplify right side
    120,475.03x = 11,100,650,302.36
  5. Step 5: Solve for x
    x = 11,100,650,302.36/120,475.03
  6. Step 6: Final answer
    x = 92,140.67

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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.