Finding the Fourth Proportional to 135,320.70, 202,981.05 and 91,083.90
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Solution
The fourth proportional to 135,320.70, 202,981.05 and 91,083.90 is: 136,625.85
Step by Step Solution
- Step 1: Write the proportion equation
135,320.70 : 202,981.05 = 91,083.90 : x - Step 2: Convert to fraction form
135,320.70/202,981.05 = 91,083.90/x - Step 3: Cross multiply
135,320.70x = 202,981.05 × 91,083.90 - Step 4: Simplify right side
135,320.70x = 18,488,305,660.10 - Step 5: Solve for x
x = 18,488,305,660.10/135,320.70 - Step 6: Final answer
x = 136,625.85
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1.5x scale
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.