Home / 111,137.13-166,699.82-31,180.67

Finding the Fourth Proportional to 111,137.13, 166,699.82 and 31,180.67

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Solution

The fourth proportional to 111,137.13, 166,699.82 and 31,180.67 is: 46,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,137.13 : 166,699.82 = 31,180.67 : x
  2. Step 2: Convert to fraction form
    111,137.13/166,699.82 = 31,180.67/x
  3. Step 3: Cross multiply
    111,137.13x = 166,699.82 × 31,180.67
  4. Step 4: Simplify right side
    111,137.13x = 5,197,811,320.93
  5. Step 5: Solve for x
    x = 5,197,811,320.93/111,137.13
  6. Step 6: Final answer
    x = 46,769.35

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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.