Home / 120,695.37-166,570.05-66,990.75

Finding the Fourth Proportional to 120,695.37, 166,570.05 and 66,990.75

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Solution

The fourth proportional to 120,695.37, 166,570.05 and 66,990.75 is: 92,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,695.37 : 166,570.05 = 66,990.75 : x
  2. Step 2: Convert to fraction form
    120,695.37/166,570.05 = 66,990.75/x
  3. Step 3: Cross multiply
    120,695.37x = 166,570.05 × 66,990.75
  4. Step 4: Simplify right side
    120,695.37x = 11,158,652,577.04
  5. Step 5: Solve for x
    x = 11,158,652,577.04/120,695.37
  6. Step 6: Final answer
    x = 92,453.03

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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.