Home / 170,611.21-255,391.89-111,319.21

Finding the Fourth Proportional to 170,611.21, 255,391.89 and 111,319.21

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Solution

The fourth proportional to 170,611.21, 255,391.89 and 111,319.21 is: 166,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,611.21 : 255,391.89 = 111,319.21 : x
  2. Step 2: Convert to fraction form
    170,611.21/255,391.89 = 111,319.21/x
  3. Step 3: Cross multiply
    170,611.21x = 255,391.89 × 111,319.21
  4. Step 4: Simplify right side
    170,611.21x = 28,430,023,435.21
  5. Step 5: Solve for x
    x = 28,430,023,435.21/170,611.21
  6. Step 6: Final answer
    x = 166,636.32

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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.