Home / 141,037.20-194,636.38-77,376.84

Finding the Fourth Proportional to 141,037.20, 194,636.38 and 77,376.84

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Solution

The fourth proportional to 141,037.20, 194,636.38 and 77,376.84 is: 106,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,037.20 : 194,636.38 = 77,376.84 : x
  2. Step 2: Convert to fraction form
    141,037.20/194,636.38 = 77,376.84/x
  3. Step 3: Cross multiply
    141,037.20x = 194,636.38 × 77,376.84
  4. Step 4: Simplify right side
    141,037.20x = 15,060,348,033.44
  5. Step 5: Solve for x
    x = 15,060,348,033.44/141,037.20
  6. Step 6: Final answer
    x = 106,782.81

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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.