Home / 190,338.68-285,196.54-115,231.18

Finding the Fourth Proportional to 190,338.68, 285,196.54 and 115,231.18

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Solution

The fourth proportional to 190,338.68, 285,196.54 and 115,231.18 is: 172,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,338.68 : 285,196.54 = 115,231.18 : x
  2. Step 2: Convert to fraction form
    190,338.68/285,196.54 = 115,231.18/x
  3. Step 3: Cross multiply
    190,338.68x = 285,196.54 × 115,231.18
  4. Step 4: Simplify right side
    190,338.68x = 32,863,533,836.12
  5. Step 5: Solve for x
    x = 32,863,533,836.12/190,338.68
  6. Step 6: Final answer
    x = 172,658.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.