Finding the Fourth Proportional to 163,578.15, 225,749.74 and 99,927.94
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Solution
The fourth proportional to 163,578.15, 225,749.74 and 99,927.94 is: 137,907.82
Step by Step Solution
- Step 1: Write the proportion equation
163,578.15 : 225,749.74 = 99,927.94 : x - Step 2: Convert to fraction form
163,578.15/225,749.74 = 99,927.94/x - Step 3: Cross multiply
163,578.15x = 225,749.74 × 99,927.94 - Step 4: Simplify right side
163,578.15x = 22,558,706,473.74 - Step 5: Solve for x
x = 22,558,706,473.74/163,578.15 - Step 6: Final answer
x = 137,907.82
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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.