Home / 120,570.24-166,388.32-66,855.84

Finding the Fourth Proportional to 120,570.24, 166,388.32 and 66,855.84

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Solution

The fourth proportional to 120,570.24, 166,388.32 and 66,855.84 is: 92,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.24 : 166,388.32 = 66,855.84 : x
  2. Step 2: Convert to fraction form
    120,570.24/166,388.32 = 66,855.84/x
  3. Step 3: Cross multiply
    120,570.24x = 166,388.32 × 66,855.84
  4. Step 4: Simplify right side
    120,570.24x = 11,124,030,899.79
  5. Step 5: Solve for x
    x = 11,124,030,899.79/120,570.24
  6. Step 6: Final answer
    x = 92,261.83

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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.