Home / 190,219.36-285,384.59-85,013.73

Finding the Fourth Proportional to 190,219.36, 285,384.59 and 85,013.73

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Solution

The fourth proportional to 190,219.36, 285,384.59 and 85,013.73 is: 127,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,219.36 : 285,384.59 = 85,013.73 : x
  2. Step 2: Convert to fraction form
    190,219.36/285,384.59 = 85,013.73/x
  3. Step 3: Cross multiply
    190,219.36x = 285,384.59 × 85,013.73
  4. Step 4: Simplify right side
    190,219.36x = 24,261,608,480.42
  5. Step 5: Solve for x
    x = 24,261,608,480.42/190,219.36
  6. Step 6: Final answer
    x = 127,545.42

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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.