Finding the Fourth Proportional to 161,201.98, 241,989.79 and 86,468.08
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Solution
The fourth proportional to 161,201.98, 241,989.79 and 86,468.08 is: 129,802.33
Step by Step Solution
- Step 1: Write the proportion equation
161,201.98 : 241,989.79 = 86,468.08 : x - Step 2: Convert to fraction form
161,201.98/241,989.79 = 86,468.08/x - Step 3: Cross multiply
161,201.98x = 241,989.79 × 86,468.08 - Step 4: Simplify right side
161,201.98x = 20,924,392,520.90 - Step 5: Solve for x
x = 20,924,392,520.90/161,201.98 - Step 6: Final answer
x = 129,802.33
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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.