Finding the Fourth Proportional to 147,813.63, 203,983.05 and 84,151.44
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Solution
The fourth proportional to 147,813.63, 203,983.05 and 84,151.44 is: 116,129.12
Step by Step Solution
- Step 1: Write the proportion equation
147,813.63 : 203,983.05 = 84,151.44 : x - Step 2: Convert to fraction form
147,813.63/203,983.05 = 84,151.44/x - Step 3: Cross multiply
147,813.63x = 203,983.05 × 84,151.44 - Step 4: Simplify right side
147,813.63x = 17,165,467,393.09 - Step 5: Solve for x
x = 17,165,467,393.09/147,813.63 - Step 6: Final answer
x = 116,129.12
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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.