Finding the Fourth Proportional to 126,447.21, 174,515.42 and 75,462.09
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Solution
The fourth proportional to 126,447.21, 174,515.42 and 75,462.09 is: 104,148.59
Step by Step Solution
- Step 1: Write the proportion equation
126,447.21 : 174,515.42 = 75,462.09 : x - Step 2: Convert to fraction form
126,447.21/174,515.42 = 75,462.09/x - Step 3: Cross multiply
126,447.21x = 174,515.42 × 75,462.09 - Step 4: Simplify right side
126,447.21x = 13,169,299,197.83 - Step 5: Solve for x
x = 13,169,299,197.83/126,447.21 - Step 6: Final answer
x = 104,148.59
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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.