Finding the Fourth Proportional to 190,130.96, 262,408.84 and 109,543.12
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Solution
The fourth proportional to 190,130.96, 262,408.84 and 109,543.12 is: 151,185.70
Step by Step Solution
- Step 1: Write the proportion equation
190,130.96 : 262,408.84 = 109,543.12 : x - Step 2: Convert to fraction form
190,130.96/262,408.84 = 109,543.12/x - Step 3: Cross multiply
190,130.96x = 262,408.84 × 109,543.12 - Step 4: Simplify right side
190,130.96x = 28,745,083,049.18 - Step 5: Solve for x
x = 28,745,083,049.18/190,130.96 - Step 6: Final answer
x = 151,185.70
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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.