Finding the Fourth Proportional to 118,902.14, 164,171.08 and 76,534.49
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Solution
The fourth proportional to 118,902.14, 164,171.08 and 76,534.49 is: 105,673.03
Step by Step Solution
- Step 1: Write the proportion equation
118,902.14 : 164,171.08 = 76,534.49 : x - Step 2: Convert to fraction form
118,902.14/164,171.08 = 76,534.49/x - Step 3: Cross multiply
118,902.14x = 164,171.08 × 76,534.49 - Step 4: Simplify right side
118,902.14x = 12,564,749,880.55 - Step 5: Solve for x
x = 12,564,749,880.55/118,902.14 - Step 6: Final answer
x = 105,673.03
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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.