Home / 120,492.03-166,279-66,785.12

Finding the Fourth Proportional to 120,492.03, 166,279 and 66,785.12

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Solution

The fourth proportional to 120,492.03, 166,279 and 66,785.12 is: 92,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,492.03 : 166,279 = 66,785.12 : x
  2. Step 2: Convert to fraction form
    120,492.03/166,279 = 66,785.12/x
  3. Step 3: Cross multiply
    120,492.03x = 166,279 × 66,785.12
  4. Step 4: Simplify right side
    120,492.03x = 11,104,962,968.48
  5. Step 5: Solve for x
    x = 11,104,962,968.48/120,492.03
  6. Step 6: Final answer
    x = 92,163.46

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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.