Finding the Fourth Proportional to 135,159.87, 202,823.19 and 68,647.74
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Solution
The fourth proportional to 135,159.87, 202,823.19 and 68,647.74 is: 103,013.96
Step by Step Solution
- Step 1: Write the proportion equation
135,159.87 : 202,823.19 = 68,647.74 : x - Step 2: Convert to fraction form
135,159.87/202,823.19 = 68,647.74/x - Step 3: Cross multiply
135,159.87x = 202,823.19 × 68,647.74 - Step 4: Simplify right side
135,159.87x = 13,923,353,613.09 - Step 5: Solve for x
x = 13,923,353,613.09/135,159.87 - Step 6: Final answer
x = 103,013.96
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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.