Home / 199,936.75-299,988.42-87,697.57

Finding the Fourth Proportional to 199,936.75, 299,988.42 and 87,697.57

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Solution

The fourth proportional to 199,936.75, 299,988.42 and 87,697.57 is: 131,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,936.75 : 299,988.42 = 87,697.57 : x
  2. Step 2: Convert to fraction form
    199,936.75/299,988.42 = 87,697.57/x
  3. Step 3: Cross multiply
    199,936.75x = 299,988.42 × 87,697.57
  4. Step 4: Simplify right side
    199,936.75x = 26,308,255,462.14
  5. Step 5: Solve for x
    x = 26,308,255,462.14/199,936.75
  6. Step 6: Final answer
    x = 131,582.89

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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.