Finding the Fourth Proportional to 135,021.70, 202,603.28 and 87,625.63
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Solution
The fourth proportional to 135,021.70, 202,603.28 and 87,625.63 is: 131,484.34
Step by Step Solution
- Step 1: Write the proportion equation
135,021.70 : 202,603.28 = 87,625.63 : x - Step 2: Convert to fraction form
135,021.70/202,603.28 = 87,625.63/x - Step 3: Cross multiply
135,021.70x = 202,603.28 × 87,625.63 - Step 4: Simplify right side
135,021.70x = 17,753,239,865.19 - Step 5: Solve for x
x = 17,753,239,865.19/135,021.70 - Step 6: Final answer
x = 131,484.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.