Finding the Fourth Proportional to 159,385.36, 219,877.92 and 102,814.96
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Solution
The fourth proportional to 159,385.36, 219,877.92 and 102,814.96 is: 141,836.99
Step by Step Solution
- Step 1: Write the proportion equation
159,385.36 : 219,877.92 = 102,814.96 : x - Step 2: Convert to fraction form
159,385.36/219,877.92 = 102,814.96/x - Step 3: Cross multiply
159,385.36x = 219,877.92 × 102,814.96 - Step 4: Simplify right side
159,385.36x = 22,606,739,549.68 - Step 5: Solve for x
x = 22,606,739,549.68/159,385.36 - Step 6: Final answer
x = 141,836.99
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1.5x scale
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.