Home / 167,556.18-251,416.26-78,818.64

Finding the Fourth Proportional to 167,556.18, 251,416.26 and 78,818.64

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Solution

The fourth proportional to 167,556.18, 251,416.26 and 78,818.64 is: 118,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,556.18 : 251,416.26 = 78,818.64 : x
  2. Step 2: Convert to fraction form
    167,556.18/251,416.26 = 78,818.64/x
  3. Step 3: Cross multiply
    167,556.18x = 251,416.26 × 78,818.64
  4. Step 4: Simplify right side
    167,556.18x = 19,816,287,687.09
  5. Step 5: Solve for x
    x = 19,816,287,687.09/167,556.18
  6. Step 6: Final answer
    x = 118,266.53

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1.5x scale

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.