Home / 190,223.86-285,440.81-106,031.42

Finding the Fourth Proportional to 190,223.86, 285,440.81 and 106,031.42

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Solution

The fourth proportional to 190,223.86, 285,440.81 and 106,031.42 is: 159,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,223.86 : 285,440.81 = 106,031.42 : x
  2. Step 2: Convert to fraction form
    190,223.86/285,440.81 = 106,031.42/x
  3. Step 3: Cross multiply
    190,223.86x = 285,440.81 × 106,031.42
  4. Step 4: Simplify right side
    190,223.86x = 30,265,694,410.25
  5. Step 5: Solve for x
    x = 30,265,694,410.25/190,223.86
  6. Step 6: Final answer
    x = 159,105.67

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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.