Home / 141,738.32-195,599.88-81,311.60

Finding the Fourth Proportional to 141,738.32, 195,599.88 and 81,311.60

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Solution

The fourth proportional to 141,738.32, 195,599.88 and 81,311.60 is: 112,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,738.32 : 195,599.88 = 81,311.60 : x
  2. Step 2: Convert to fraction form
    141,738.32/195,599.88 = 81,311.60/x
  3. Step 3: Cross multiply
    141,738.32x = 195,599.88 × 81,311.60
  4. Step 4: Simplify right side
    141,738.32x = 15,904,539,202.61
  5. Step 5: Solve for x
    x = 15,904,539,202.61/141,738.32
  6. Step 6: Final answer
    x = 112,210.58

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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.