Finding the Fourth Proportional to 112,614.22, 155,228.97 and 88,703.02
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Solution
The fourth proportional to 112,614.22, 155,228.97 and 88,703.02 is: 122,269.45
Step by Step Solution
- Step 1: Write the proportion equation
112,614.22 : 155,228.97 = 88,703.02 : x - Step 2: Convert to fraction form
112,614.22/155,228.97 = 88,703.02/x - Step 3: Cross multiply
112,614.22x = 155,228.97 × 88,703.02 - Step 4: Simplify right side
112,614.22x = 13,769,278,430.49 - Step 5: Solve for x
x = 13,769,278,430.49/112,614.22 - Step 6: Final answer
x = 122,269.45
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1.5x scale
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.