Finding the Fourth Proportional to 102,380.88, 153,466.08 and 39,186.18
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Solution
The fourth proportional to 102,380.88, 153,466.08 and 39,186.18 is: 58,738.99
Step by Step Solution
- Step 1: Write the proportion equation
102,380.88 : 153,466.08 = 39,186.18 : x - Step 2: Convert to fraction form
102,380.88/153,466.08 = 39,186.18/x - Step 3: Cross multiply
102,380.88x = 153,466.08 × 39,186.18 - Step 4: Simplify right side
102,380.88x = 6,013,749,434.77 - Step 5: Solve for x
x = 6,013,749,434.77/102,380.88 - Step 6: Final answer
x = 58,738.99
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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.