Home / 141,336.12-195,057.57-80,915.39

Finding the Fourth Proportional to 141,336.12, 195,057.57 and 80,915.39

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Solution

The fourth proportional to 141,336.12, 195,057.57 and 80,915.39 is: 111,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,336.12 : 195,057.57 = 80,915.39 : x
  2. Step 2: Convert to fraction form
    141,336.12/195,057.57 = 80,915.39/x
  3. Step 3: Cross multiply
    141,336.12x = 195,057.57 × 80,915.39
  4. Step 4: Simplify right side
    141,336.12x = 15,783,158,953.46
  5. Step 5: Solve for x
    x = 15,783,158,953.46/141,336.12
  6. Step 6: Final answer
    x = 111,671.09

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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.