Home / 190,281.09-285,397.04-90,504.69

Finding the Fourth Proportional to 190,281.09, 285,397.04 and 90,504.69

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Solution

The fourth proportional to 190,281.09, 285,397.04 and 90,504.69 is: 135,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,281.09 : 285,397.04 = 90,504.69 : x
  2. Step 2: Convert to fraction form
    190,281.09/285,397.04 = 90,504.69/x
  3. Step 3: Cross multiply
    190,281.09x = 285,397.04 × 90,504.69
  4. Step 4: Simplify right side
    190,281.09x = 25,829,770,179.59
  5. Step 5: Solve for x
    x = 25,829,770,179.59/190,281.09
  6. Step 6: Final answer
    x = 135,745.33

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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.