Finding the Fourth Proportional to 104,979.16, 144,871.23 and 57,232.63
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Solution
The fourth proportional to 104,979.16, 144,871.23 and 57,232.63 is: 78,981.02
Step by Step Solution
- Step 1: Write the proportion equation
104,979.16 : 144,871.23 = 57,232.63 : x - Step 2: Convert to fraction form
104,979.16/144,871.23 = 57,232.63/x - Step 3: Cross multiply
104,979.16x = 144,871.23 × 57,232.63 - Step 4: Simplify right side
104,979.16x = 8,291,361,504.23 - Step 5: Solve for x
x = 8,291,361,504.23/104,979.16 - Step 6: Final answer
x = 78,981.02
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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.