Finding the Fourth Proportional to 157,982.92, 236,764.78 and 69,139.70
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Solution
The fourth proportional to 157,982.92, 236,764.78 and 69,139.70 is: 103,617.82
Step by Step Solution
- Step 1: Write the proportion equation
157,982.92 : 236,764.78 = 69,139.70 : x - Step 2: Convert to fraction form
157,982.92/236,764.78 = 69,139.70/x - Step 3: Cross multiply
157,982.92x = 236,764.78 × 69,139.70 - Step 4: Simplify right side
157,982.92x = 16,369,845,859.77 - Step 5: Solve for x
x = 16,369,845,859.77/157,982.92 - Step 6: Final answer
x = 103,617.82
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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.