Home / 190,625.16-285,939.90-65,937

Finding the Fourth Proportional to 190,625.16, 285,939.90 and 65,937

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Solution

The fourth proportional to 190,625.16, 285,939.90 and 65,937 is: 98,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,625.16 : 285,939.90 = 65,937 : x
  2. Step 2: Convert to fraction form
    190,625.16/285,939.90 = 65,937/x
  3. Step 3: Cross multiply
    190,625.16x = 285,939.90 × 65,937
  4. Step 4: Simplify right side
    190,625.16x = 18,854,019,186.30
  5. Step 5: Solve for x
    x = 18,854,019,186.30/190,625.16
  6. Step 6: Final answer
    x = 98,906.25

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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.