Home / 190,372.19-285,427.06-90,448.16

Finding the Fourth Proportional to 190,372.19, 285,427.06 and 90,448.16

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Solution

The fourth proportional to 190,372.19, 285,427.06 and 90,448.16 is: 135,609.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,372.19 : 285,427.06 = 90,448.16 : x
  2. Step 2: Convert to fraction form
    190,372.19/285,427.06 = 90,448.16/x
  3. Step 3: Cross multiply
    190,372.19x = 285,427.06 × 90,448.16
  4. Step 4: Simplify right side
    190,372.19x = 25,816,350,737.95
  5. Step 5: Solve for x
    x = 25,816,350,737.95/190,372.19
  6. Step 6: Final answer
    x = 135,609.89

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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.