Home / 112,052.40-168,078.60-111,274.80

Finding the Fourth Proportional to 112,052.40, 168,078.60 and 111,274.80

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Solution

The fourth proportional to 112,052.40, 168,078.60 and 111,274.80 is: 166,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,052.40 : 168,078.60 = 111,274.80 : x
  2. Step 2: Convert to fraction form
    112,052.40/168,078.60 = 111,274.80/x
  3. Step 3: Cross multiply
    112,052.40x = 168,078.60 × 111,274.80
  4. Step 4: Simplify right side
    112,052.40x = 18,702,912,599.28
  5. Step 5: Solve for x
    x = 18,702,912,599.28/112,052.40
  6. Step 6: Final answer
    x = 166,912.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.