Home / 190,231.89-285,103.62-71,762.10

Finding the Fourth Proportional to 190,231.89, 285,103.62 and 71,762.10

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Solution

The fourth proportional to 190,231.89, 285,103.62 and 71,762.10 is: 107,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,231.89 : 285,103.62 = 71,762.10 : x
  2. Step 2: Convert to fraction form
    190,231.89/285,103.62 = 71,762.10/x
  3. Step 3: Cross multiply
    190,231.89x = 285,103.62 × 71,762.10
  4. Step 4: Simplify right side
    190,231.89x = 20,459,634,488.80
  5. Step 5: Solve for x
    x = 20,459,634,488.80/190,231.89
  6. Step 6: Final answer
    x = 107,551.02

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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.