Home / 120,884.00-180,438.74-111,977.44

Finding the Fourth Proportional to 120,884.00, 180,438.74 and 111,977.44

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Solution

The fourth proportional to 120,884.00, 180,438.74 and 111,977.44 is: 167,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.00 : 180,438.74 = 111,977.44 : x
  2. Step 2: Convert to fraction form
    120,884.00/180,438.74 = 111,977.44/x
  3. Step 3: Cross multiply
    120,884.00x = 180,438.74 × 111,977.44
  4. Step 4: Simplify right side
    120,884.00x = 20,205,067,590.96
  5. Step 5: Solve for x
    x = 20,205,067,590.96/120,884.00
  6. Step 6: Final answer
    x = 167,144.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.