Home / 141,213.68-194,878.86-77,555.58

Finding the Fourth Proportional to 141,213.68, 194,878.86 and 77,555.58

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Solution

The fourth proportional to 141,213.68, 194,878.86 and 77,555.58 is: 107,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,213.68 : 194,878.86 = 77,555.58 : x
  2. Step 2: Convert to fraction form
    141,213.68/194,878.86 = 77,555.58/x
  3. Step 3: Cross multiply
    141,213.68x = 194,878.86 × 77,555.58
  4. Step 4: Simplify right side
    141,213.68x = 15,113,942,431.66
  5. Step 5: Solve for x
    x = 15,113,942,431.66/141,213.68
  6. Step 6: Final answer
    x = 107,028.88

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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.