Finding the Fourth Proportional to 136,298.21, 188,097.08 and 75,865.02
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Solution
The fourth proportional to 136,298.21, 188,097.08 and 75,865.02 is: 104,696.82
Step by Step Solution
- Step 1: Write the proportion equation
136,298.21 : 188,097.08 = 75,865.02 : x - Step 2: Convert to fraction form
136,298.21/188,097.08 = 75,865.02/x - Step 3: Cross multiply
136,298.21x = 188,097.08 × 75,865.02 - Step 4: Simplify right side
136,298.21x = 14,269,988,736.14 - Step 5: Solve for x
x = 14,269,988,736.14/136,298.21 - Step 6: Final answer
x = 104,696.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.