Home / 120,670.78-166,502.54-69,004.26

Finding the Fourth Proportional to 120,670.78, 166,502.54 and 69,004.26

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Solution

The fourth proportional to 120,670.78, 166,502.54 and 69,004.26 is: 95,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670.78 : 166,502.54 = 69,004.26 : x
  2. Step 2: Convert to fraction form
    120,670.78/166,502.54 = 69,004.26/x
  3. Step 3: Cross multiply
    120,670.78x = 166,502.54 × 69,004.26
  4. Step 4: Simplify right side
    120,670.78x = 11,489,384,560.82
  5. Step 5: Solve for x
    x = 11,489,384,560.82/120,670.78
  6. Step 6: Final answer
    x = 95,212.65

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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.