Home / 107,629.71-161,440.92-28,739.76

Finding the Fourth Proportional to 107,629.71, 161,440.92 and 28,739.76

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Solution

The fourth proportional to 107,629.71, 161,440.92 and 28,739.76 is: 43,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.71 : 161,440.92 = 28,739.76 : x
  2. Step 2: Convert to fraction form
    107,629.71/161,440.92 = 28,739.76/x
  3. Step 3: Cross multiply
    107,629.71x = 161,440.92 × 28,739.76
  4. Step 4: Simplify right side
    107,629.71x = 4,639,773,294.98
  5. Step 5: Solve for x
    x = 4,639,773,294.98/107,629.71
  6. Step 6: Final answer
    x = 43,108.67

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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.