Home / 190,221.86-285,437.81-106,029.42

Finding the Fourth Proportional to 190,221.86, 285,437.81 and 106,029.42

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Solution

The fourth proportional to 190,221.86, 285,437.81 and 106,029.42 is: 159,102.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,221.86 : 285,437.81 = 106,029.42 : x
  2. Step 2: Convert to fraction form
    190,221.86/285,437.81 = 106,029.42/x
  3. Step 3: Cross multiply
    190,221.86x = 285,437.81 × 106,029.42
  4. Step 4: Simplify right side
    190,221.86x = 30,264,805,440.37
  5. Step 5: Solve for x
    x = 30,264,805,440.37/190,221.86
  6. Step 6: Final answer
    x = 159,102.67

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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.