Finding the Fourth Proportional to 135,072.90, 202,390.65 and 127,199.70
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Solution
The fourth proportional to 135,072.90, 202,390.65 and 127,199.70 is: 190,593.60
Step by Step Solution
- Step 1: Write the proportion equation
135,072.90 : 202,390.65 = 127,199.70 : x - Step 2: Convert to fraction form
135,072.90/202,390.65 = 127,199.70/x - Step 3: Cross multiply
135,072.90x = 202,390.65 × 127,199.70 - Step 4: Simplify right side
135,072.90x = 25,744,029,962.81 - Step 5: Solve for x
x = 25,744,029,962.81/135,072.90 - Step 6: Final answer
x = 190,593.60
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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.