Finding the Fourth Proportional to 135,644.36, 187,189.62 and 75,219.26
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Solution
The fourth proportional to 135,644.36, 187,189.62 and 75,219.26 is: 103,802.80
Step by Step Solution
- Step 1: Write the proportion equation
135,644.36 : 187,189.62 = 75,219.26 : x - Step 2: Convert to fraction form
135,644.36/187,189.62 = 75,219.26/x - Step 3: Cross multiply
135,644.36x = 187,189.62 × 75,219.26 - Step 4: Simplify right side
135,644.36x = 14,080,264,696.08 - Step 5: Solve for x
x = 14,080,264,696.08/135,644.36 - Step 6: Final answer
x = 103,802.80
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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.