Home / 197,120.40-295,680.60-72,445.20

Finding the Fourth Proportional to 197,120.40, 295,680.60 and 72,445.20

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Solution

The fourth proportional to 197,120.40, 295,680.60 and 72,445.20 is: 108,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,120.40 : 295,680.60 = 72,445.20 : x
  2. Step 2: Convert to fraction form
    197,120.40/295,680.60 = 72,445.20/x
  3. Step 3: Cross multiply
    197,120.40x = 295,680.60 × 72,445.20
  4. Step 4: Simplify right side
    197,120.40x = 21,420,640,203.12
  5. Step 5: Solve for x
    x = 21,420,640,203.12/197,120.40
  6. Step 6: Final answer
    x = 108,667.80

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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.