Home / 190,276.70-285,027.51-90,133.34

Finding the Fourth Proportional to 190,276.70, 285,027.51 and 90,133.34

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Solution

The fourth proportional to 190,276.70, 285,027.51 and 90,133.34 is: 135,016.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,276.70 : 285,027.51 = 90,133.34 : x
  2. Step 2: Convert to fraction form
    190,276.70/285,027.51 = 90,133.34/x
  3. Step 3: Cross multiply
    190,276.70x = 285,027.51 × 90,133.34
  4. Step 4: Simplify right side
    190,276.70x = 25,690,481,468.18
  5. Step 5: Solve for x
    x = 25,690,481,468.18/190,276.70
  6. Step 6: Final answer
    x = 135,016.43

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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.