Home / 190,414.20-285,491.70-90,622.20

Finding the Fourth Proportional to 190,414.20, 285,491.70 and 90,622.20

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Solution

The fourth proportional to 190,414.20, 285,491.70 and 90,622.20 is: 135,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,414.20 : 285,491.70 = 90,622.20 : x
  2. Step 2: Convert to fraction form
    190,414.20/285,491.70 = 90,622.20/x
  3. Step 3: Cross multiply
    190,414.20x = 285,491.70 × 90,622.20
  4. Step 4: Simplify right side
    190,414.20x = 25,871,885,935.74
  5. Step 5: Solve for x
    x = 25,871,885,935.74/190,414.20
  6. Step 6: Final answer
    x = 135,871.62

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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.