Home / 190,316.70-285,087.51-90,173.34

Finding the Fourth Proportional to 190,316.70, 285,087.51 and 90,173.34

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Solution

The fourth proportional to 190,316.70, 285,087.51 and 90,173.34 is: 135,076.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,316.70 : 285,087.51 = 90,173.34 : x
  2. Step 2: Convert to fraction form
    190,316.70/285,087.51 = 90,173.34/x
  3. Step 3: Cross multiply
    190,316.70x = 285,087.51 × 90,173.34
  4. Step 4: Simplify right side
    190,316.70x = 25,707,292,968.98
  5. Step 5: Solve for x
    x = 25,707,292,968.98/190,316.70
  6. Step 6: Final answer
    x = 135,076.39

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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.