Home / 190,036.65-285,099.36-55,103.55

Finding the Fourth Proportional to 190,036.65, 285,099.36 and 55,103.55

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Solution

The fourth proportional to 190,036.65, 285,099.36 and 55,103.55 is: 82,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,036.65 : 285,099.36 = 55,103.55 : x
  2. Step 2: Convert to fraction form
    190,036.65/285,099.36 = 55,103.55/x
  3. Step 3: Cross multiply
    190,036.65x = 285,099.36 × 55,103.55
  4. Step 4: Simplify right side
    190,036.65x = 15,709,986,838.73
  5. Step 5: Solve for x
    x = 15,709,986,838.73/190,036.65
  6. Step 6: Final answer
    x = 82,668.19

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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.