Home / 114,673.32-158,128.20-80,670.60

Finding the Fourth Proportional to 114,673.32, 158,128.20 and 80,670.60

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Solution

The fourth proportional to 114,673.32, 158,128.20 and 80,670.60 is: 111,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,673.32 : 158,128.20 = 80,670.60 : x
  2. Step 2: Convert to fraction form
    114,673.32/158,128.20 = 80,670.60/x
  3. Step 3: Cross multiply
    114,673.32x = 158,128.20 × 80,670.60
  4. Step 4: Simplify right side
    114,673.32x = 12,756,296,770.92
  5. Step 5: Solve for x
    x = 12,756,296,770.92/114,673.32
  6. Step 6: Final answer
    x = 111,240.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.