Finding the Fourth Proportional to 118,305.62, 177,486.68 and 39,420.53
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Solution
The fourth proportional to 118,305.62, 177,486.68 and 39,420.53 is: 59,140.21
Step by Step Solution
- Step 1: Write the proportion equation
118,305.62 : 177,486.68 = 39,420.53 : x - Step 2: Convert to fraction form
118,305.62/177,486.68 = 39,420.53/x - Step 3: Cross multiply
118,305.62x = 177,486.68 × 39,420.53 - Step 4: Simplify right side
118,305.62x = 6,996,618,993.54 - Step 5: Solve for x
x = 6,996,618,993.54/118,305.62 - Step 6: Final answer
x = 59,140.21
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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.