Home / 112,170.13-154,789.30-66,847.07

Finding the Fourth Proportional to 112,170.13, 154,789.30 and 66,847.07

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Solution

The fourth proportional to 112,170.13, 154,789.30 and 66,847.07 is: 92,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,170.13 : 154,789.30 = 66,847.07 : x
  2. Step 2: Convert to fraction form
    112,170.13/154,789.30 = 66,847.07/x
  3. Step 3: Cross multiply
    112,170.13x = 154,789.30 × 66,847.07
  4. Step 4: Simplify right side
    112,170.13x = 10,347,211,172.35
  5. Step 5: Solve for x
    x = 10,347,211,172.35/112,170.13
  6. Step 6: Final answer
    x = 92,245.69

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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.