Home / 190,664.21-285,810.28-90,797.51

Finding the Fourth Proportional to 190,664.21, 285,810.28 and 90,797.51

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Solution

The fourth proportional to 190,664.21, 285,810.28 and 90,797.51 is: 136,107.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,664.21 : 285,810.28 = 90,797.51 : x
  2. Step 2: Convert to fraction form
    190,664.21/285,810.28 = 90,797.51/x
  3. Step 3: Cross multiply
    190,664.21x = 285,810.28 × 90,797.51
  4. Step 4: Simplify right side
    190,664.21x = 25,950,861,756.40
  5. Step 5: Solve for x
    x = 25,950,861,756.40/190,664.21
  6. Step 6: Final answer
    x = 136,107.67

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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.