Finding the Fourth Proportional to 118,419.68, 163,528.28 and 76,052.02
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Solution
The fourth proportional to 118,419.68, 163,528.28 and 76,052.02 is: 105,021.87
Step by Step Solution
- Step 1: Write the proportion equation
118,419.68 : 163,528.28 = 76,052.02 : x - Step 2: Convert to fraction form
118,419.68/163,528.28 = 76,052.02/x - Step 3: Cross multiply
118,419.68x = 163,528.28 × 76,052.02 - Step 4: Simplify right side
118,419.68x = 12,436,656,021.13 - Step 5: Solve for x
x = 12,436,656,021.13/118,419.68 - Step 6: Final answer
x = 105,021.87
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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.