Home / 146,642.96-220,047.64-79,174.09

Finding the Fourth Proportional to 146,642.96, 220,047.64 and 79,174.09

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Solution

The fourth proportional to 146,642.96, 220,047.64 and 79,174.09 is: 118,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,642.96 : 220,047.64 = 79,174.09 : x
  2. Step 2: Convert to fraction form
    146,642.96/220,047.64 = 79,174.09/x
  3. Step 3: Cross multiply
    146,642.96x = 220,047.64 × 79,174.09
  4. Step 4: Simplify right side
    146,642.96x = 17,422,071,615.09
  5. Step 5: Solve for x
    x = 17,422,071,615.09/146,642.96
  6. Step 6: Final answer
    x = 118,806.06

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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.