Home / 190,136.46-285,250.05-65,478.54

Finding the Fourth Proportional to 190,136.46, 285,250.05 and 65,478.54

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Solution

The fourth proportional to 190,136.46, 285,250.05 and 65,478.54 is: 98,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,136.46 : 285,250.05 = 65,478.54 : x
  2. Step 2: Convert to fraction form
    190,136.46/285,250.05 = 65,478.54/x
  3. Step 3: Cross multiply
    190,136.46x = 285,250.05 × 65,478.54
  4. Step 4: Simplify right side
    190,136.46x = 18,677,756,808.93
  5. Step 5: Solve for x
    x = 18,677,756,808.93/190,136.46
  6. Step 6: Final answer
    x = 98,233.43

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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.