Home / 145,599.12-200,926.37-81,936.97

Finding the Fourth Proportional to 145,599.12, 200,926.37 and 81,936.97

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Solution

The fourth proportional to 145,599.12, 200,926.37 and 81,936.97 is: 113,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,599.12 : 200,926.37 = 81,936.97 : x
  2. Step 2: Convert to fraction form
    145,599.12/200,926.37 = 81,936.97/x
  3. Step 3: Cross multiply
    145,599.12x = 200,926.37 × 81,936.97
  4. Step 4: Simplify right side
    145,599.12x = 16,463,297,653.43
  5. Step 5: Solve for x
    x = 16,463,297,653.43/145,599.12
  6. Step 6: Final answer
    x = 113,072.78

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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.