Finding the Fourth Proportional to 130,287.09, 195,459.32 and 74,153.62
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Solution
The fourth proportional to 130,287.09, 195,459.32 and 74,153.62 is: 111,246.75
Step by Step Solution
- Step 1: Write the proportion equation
130,287.09 : 195,459.32 = 74,153.62 : x - Step 2: Convert to fraction form
130,287.09/195,459.32 = 74,153.62/x - Step 3: Cross multiply
130,287.09x = 195,459.32 × 74,153.62 - Step 4: Simplify right side
130,287.09x = 14,494,015,837.47 - Step 5: Solve for x
x = 14,494,015,837.47/130,287.09 - Step 6: Final answer
x = 111,246.75
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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.