Finding the Fourth Proportional to 103,837.92, 155,530.65 and 68,259.06
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Solution
The fourth proportional to 103,837.92, 155,530.65 and 68,259.06 is: 102,239.88
Step by Step Solution
- Step 1: Write the proportion equation
103,837.92 : 155,530.65 = 68,259.06 : x - Step 2: Convert to fraction form
103,837.92/155,530.65 = 68,259.06/x - Step 3: Cross multiply
103,837.92x = 155,530.65 × 68,259.06 - Step 4: Simplify right side
103,837.92x = 10,616,375,970.19 - Step 5: Solve for x
x = 10,616,375,970.19/103,837.92 - Step 6: Final answer
x = 102,239.88
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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.