Finding the Fourth Proportional to 161,668.21, 223,024.86 and 125,611.47
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Solution
The fourth proportional to 161,668.21, 223,024.86 and 125,611.47 is: 173,283.79
Step by Step Solution
- Step 1: Write the proportion equation
161,668.21 : 223,024.86 = 125,611.47 : x - Step 2: Convert to fraction form
161,668.21/223,024.86 = 125,611.47/x - Step 3: Cross multiply
161,668.21x = 223,024.86 × 125,611.47 - Step 4: Simplify right side
161,668.21x = 28,014,480,511.14 - Step 5: Solve for x
x = 28,014,480,511.14/161,668.21 - Step 6: Final answer
x = 173,283.79
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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.