Finding the Fourth Proportional to 186,307.05, 257,103.66 and 101,424.09
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Solution
The fourth proportional to 186,307.05, 257,103.66 and 101,424.09 is: 139,965.21
Step by Step Solution
- Step 1: Write the proportion equation
186,307.05 : 257,103.66 = 101,424.09 : x - Step 2: Convert to fraction form
186,307.05/257,103.66 = 101,424.09/x - Step 3: Cross multiply
186,307.05x = 257,103.66 × 101,424.09 - Step 4: Simplify right side
186,307.05x = 26,076,504,751.17 - Step 5: Solve for x
x = 26,076,504,751.17/186,307.05 - Step 6: Final answer
x = 139,965.21
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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.