Finding the Fourth Proportional to 135,279.10, 202,918.65 and 61,407.10
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Solution
The fourth proportional to 135,279.10, 202,918.65 and 61,407.10 is: 92,110.65
Step by Step Solution
- Step 1: Write the proportion equation
135,279.10 : 202,918.65 = 61,407.10 : x - Step 2: Convert to fraction form
135,279.10/202,918.65 = 61,407.10/x - Step 3: Cross multiply
135,279.10x = 202,918.65 × 61,407.10 - Step 4: Simplify right side
135,279.10x = 12,460,645,832.42 - Step 5: Solve for x
x = 12,460,645,832.42/135,279.10 - Step 6: Final answer
x = 92,110.65
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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.