Home / 120,400.23-166,152.36-65,952.65

Finding the Fourth Proportional to 120,400.23, 166,152.36 and 65,952.65

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Solution

The fourth proportional to 120,400.23, 166,152.36 and 65,952.65 is: 91,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,400.23 : 166,152.36 = 65,952.65 : x
  2. Step 2: Convert to fraction form
    120,400.23/166,152.36 = 65,952.65/x
  3. Step 3: Cross multiply
    120,400.23x = 166,152.36 × 65,952.65
  4. Step 4: Simplify right side
    120,400.23x = 10,958,187,614.99
  5. Step 5: Solve for x
    x = 10,958,187,614.99/120,400.23
  6. Step 6: Final answer
    x = 91,014.67

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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.