Home / 193,498.85-290,136.53-75,031.80

Finding the Fourth Proportional to 193,498.85, 290,136.53 and 75,031.80

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Solution

The fourth proportional to 193,498.85, 290,136.53 and 75,031.80 is: 112,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,498.85 : 290,136.53 = 75,031.80 : x
  2. Step 2: Convert to fraction form
    193,498.85/290,136.53 = 75,031.80/x
  3. Step 3: Cross multiply
    193,498.85x = 290,136.53 × 75,031.80
  4. Step 4: Simplify right side
    193,498.85x = 21,769,465,716.50
  5. Step 5: Solve for x
    x = 21,769,465,716.50/193,498.85
  6. Step 6: Final answer
    x = 112,504.37

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1.5x scale

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.