Finding the Fourth Proportional to 159,390.73, 219,959.53 and 87,770.88
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Solution
The fourth proportional to 159,390.73, 219,959.53 and 87,770.88 is: 121,123.99
Step by Step Solution
- Step 1: Write the proportion equation
159,390.73 : 219,959.53 = 87,770.88 : x - Step 2: Convert to fraction form
159,390.73/219,959.53 = 87,770.88/x - Step 3: Cross multiply
159,390.73x = 219,959.53 × 87,770.88 - Step 4: Simplify right side
159,390.73x = 19,306,041,512.49 - Step 5: Solve for x
x = 19,306,041,512.49/159,390.73 - Step 6: Final answer
x = 121,123.99
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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.