Home / 120,945.16-166,846.26-104,149

Finding the Fourth Proportional to 120,945.16, 166,846.26 and 104,149

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Solution

The fourth proportional to 120,945.16, 166,846.26 and 104,149 is: 143,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945.16 : 166,846.26 = 104,149 : x
  2. Step 2: Convert to fraction form
    120,945.16/166,846.26 = 104,149/x
  3. Step 3: Cross multiply
    120,945.16x = 166,846.26 × 104,149
  4. Step 4: Simplify right side
    120,945.16x = 17,376,871,132.74
  5. Step 5: Solve for x
    x = 17,376,871,132.74/120,945.16
  6. Step 6: Final answer
    x = 143,675.62

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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.