Home / 120,251.86-165,940.63-66,533.67

Finding the Fourth Proportional to 120,251.86, 165,940.63 and 66,533.67

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Solution

The fourth proportional to 120,251.86, 165,940.63 and 66,533.67 is: 91,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,251.86 : 165,940.63 = 66,533.67 : x
  2. Step 2: Convert to fraction form
    120,251.86/165,940.63 = 66,533.67/x
  3. Step 3: Cross multiply
    120,251.86x = 165,940.63 × 66,533.67
  4. Step 4: Simplify right side
    120,251.86x = 11,040,639,116.01
  5. Step 5: Solve for x
    x = 11,040,639,116.01/120,251.86
  6. Step 6: Final answer
    x = 91,812.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.