Finding the Fourth Proportional to 135,353.86, 202,916.62 and 85,323.70
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Solution
The fourth proportional to 135,353.86, 202,916.62 and 85,323.70 is: 127,913.58
Step by Step Solution
- Step 1: Write the proportion equation
135,353.86 : 202,916.62 = 85,323.70 : x - Step 2: Convert to fraction form
135,353.86/202,916.62 = 85,323.70/x - Step 3: Cross multiply
135,353.86x = 202,916.62 × 85,323.70 - Step 4: Simplify right side
135,353.86x = 17,313,596,809.89 - Step 5: Solve for x
x = 17,313,596,809.89/135,353.86 - Step 6: Final answer
x = 127,913.58
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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.