Finding the Fourth Proportional to 158,883.18, 219,262.77 and 87,269.91
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Solution
The fourth proportional to 158,883.18, 219,262.77 and 87,269.91 is: 120,434.66
Step by Step Solution
- Step 1: Write the proportion equation
158,883.18 : 219,262.77 = 87,269.91 : x - Step 2: Convert to fraction form
158,883.18/219,262.77 = 87,269.91/x - Step 3: Cross multiply
158,883.18x = 219,262.77 × 87,269.91 - Step 4: Simplify right side
158,883.18x = 19,135,042,204.25 - Step 5: Solve for x
x = 19,135,042,204.25/158,883.18 - Step 6: Final answer
x = 120,434.66
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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.