Finding the Fourth Proportional to 118,765.18, 178,164.16 and 39,901.96
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Solution
The fourth proportional to 118,765.18, 178,164.16 and 39,901.96 is: 59,858.45
Step by Step Solution
- Step 1: Write the proportion equation
118,765.18 : 178,164.16 = 39,901.96 : x - Step 2: Convert to fraction form
118,765.18/178,164.16 = 39,901.96/x - Step 3: Cross multiply
118,765.18x = 178,164.16 × 39,901.96 - Step 4: Simplify right side
118,765.18x = 7,109,099,185.75 - Step 5: Solve for x
x = 7,109,099,185.75/118,765.18 - Step 6: Final answer
x = 59,858.45
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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.