Finding the Fourth Proportional to 135,850.93, 203,859.29 and 85,862.18
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Solution
The fourth proportional to 135,850.93, 203,859.29 and 85,862.18 is: 128,845.67
Step by Step Solution
- Step 1: Write the proportion equation
135,850.93 : 203,859.29 = 85,862.18 : x - Step 2: Convert to fraction form
135,850.93/203,859.29 = 85,862.18/x - Step 3: Cross multiply
135,850.93x = 203,859.29 × 85,862.18 - Step 4: Simplify right side
135,850.93x = 17,503,803,776.96 - Step 5: Solve for x
x = 17,503,803,776.96/135,850.93 - Step 6: Final answer
x = 128,845.67
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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.