Home / 120,480.48-166,274.64-66,777.12

Finding the Fourth Proportional to 120,480.48, 166,274.64 and 66,777.12

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Solution

The fourth proportional to 120,480.48, 166,274.64 and 66,777.12 is: 92,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.48 : 166,274.64 = 66,777.12 : x
  2. Step 2: Convert to fraction form
    120,480.48/166,274.64 = 66,777.12/x
  3. Step 3: Cross multiply
    120,480.48x = 166,274.64 × 66,777.12
  4. Step 4: Simplify right side
    120,480.48x = 11,103,341,588.24
  5. Step 5: Solve for x
    x = 11,103,341,588.24/120,480.48
  6. Step 6: Final answer
    x = 92,158.84

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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.