Home / 111,035.06-166,478.61-61,138.66

Finding the Fourth Proportional to 111,035.06, 166,478.61 and 61,138.66

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Solution

The fourth proportional to 111,035.06, 166,478.61 and 61,138.66 is: 91,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,035.06 : 166,478.61 = 61,138.66 : x
  2. Step 2: Convert to fraction form
    111,035.06/166,478.61 = 61,138.66/x
  3. Step 3: Cross multiply
    111,035.06x = 166,478.61 × 61,138.66
  4. Step 4: Simplify right side
    111,035.06x = 10,178,277,995.98
  5. Step 5: Solve for x
    x = 10,178,277,995.98/111,035.06
  6. Step 6: Final answer
    x = 91,667.24

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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.