Finding the Fourth Proportional to 158,936.22, 219,335.94 and 87,320.88
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Solution
The fourth proportional to 158,936.22, 219,335.94 and 87,320.88 is: 120,504.99
Step by Step Solution
- Step 1: Write the proportion equation
158,936.22 : 219,335.94 = 87,320.88 : x - Step 2: Convert to fraction form
158,936.22/219,335.94 = 87,320.88/x - Step 3: Cross multiply
158,936.22x = 219,335.94 × 87,320.88 - Step 4: Simplify right side
158,936.22x = 19,152,607,296.43 - Step 5: Solve for x
x = 19,152,607,296.43/158,936.22 - Step 6: Final answer
x = 120,504.99
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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.