Home / 112,065.90-168,190.65-111,191.10

Finding the Fourth Proportional to 112,065.90, 168,190.65 and 111,191.10

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Solution

The fourth proportional to 112,065.90, 168,190.65 and 111,191.10 is: 166,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.90 : 168,190.65 = 111,191.10 : x
  2. Step 2: Convert to fraction form
    112,065.90/168,190.65 = 111,191.10/x
  3. Step 3: Cross multiply
    112,065.90x = 168,190.65 × 111,191.10
  4. Step 4: Simplify right side
    112,065.90x = 18,701,303,383.22
  5. Step 5: Solve for x
    x = 18,701,303,383.22/112,065.90
  6. Step 6: Final answer
    x = 166,877.73

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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.