Finding the Fourth Proportional to 168,663.24, 252,751.74 and 128,509.80
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Solution
The fourth proportional to 168,663.24, 252,751.74 and 128,509.80 is: 192,579.46
Step by Step Solution
- Step 1: Write the proportion equation
168,663.24 : 252,751.74 = 128,509.80 : x - Step 2: Convert to fraction form
168,663.24/252,751.74 = 128,509.80/x - Step 3: Cross multiply
168,663.24x = 252,751.74 × 128,509.80 - Step 4: Simplify right side
168,663.24x = 32,481,075,557.05 - Step 5: Solve for x
x = 32,481,075,557.05/168,663.24 - Step 6: Final answer
x = 192,579.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.