Home / 120,588.40-166,412.44-66,878.38

Finding the Fourth Proportional to 120,588.40, 166,412.44 and 66,878.38

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Solution

The fourth proportional to 120,588.40, 166,412.44 and 66,878.38 is: 92,292.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,588.40 : 166,412.44 = 66,878.38 : x
  2. Step 2: Convert to fraction form
    120,588.40/166,412.44 = 66,878.38/x
  3. Step 3: Cross multiply
    120,588.40x = 166,412.44 × 66,878.38
  4. Step 4: Simplify right side
    120,588.40x = 11,129,394,399.05
  5. Step 5: Solve for x
    x = 11,129,394,399.05/120,588.40
  6. Step 6: Final answer
    x = 92,292.41

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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.