Finding the Fourth Proportional to 135,159.81, 202,823.10 and 68,647.68
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Solution
The fourth proportional to 135,159.81, 202,823.10 and 68,647.68 is: 103,013.87
Step by Step Solution
- Step 1: Write the proportion equation
135,159.81 : 202,823.10 = 68,647.68 : x - Step 2: Convert to fraction form
135,159.81/202,823.10 = 68,647.68/x - Step 3: Cross multiply
135,159.81x = 202,823.10 × 68,647.68 - Step 4: Simplify right side
135,159.81x = 13,923,335,265.41 - Step 5: Solve for x
x = 13,923,335,265.41/135,159.81 - Step 6: Final answer
x = 103,013.87
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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.