Home / 120,440.95-166,195.06-66,712.64

Finding the Fourth Proportional to 120,440.95, 166,195.06 and 66,712.64

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Solution

The fourth proportional to 120,440.95, 166,195.06 and 66,712.64 is: 92,055.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,440.95 : 166,195.06 = 66,712.64 : x
  2. Step 2: Convert to fraction form
    120,440.95/166,195.06 = 66,712.64/x
  3. Step 3: Cross multiply
    120,440.95x = 166,195.06 × 66,712.64
  4. Step 4: Simplify right side
    120,440.95x = 11,087,310,209.80
  5. Step 5: Solve for x
    x = 11,087,310,209.80/120,440.95
  6. Step 6: Final answer
    x = 92,055.99

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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.