Finding the Fourth Proportional to 161,873.97, 242,881.04 and 86,906.62
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Solution
The fourth proportional to 161,873.97, 242,881.04 and 86,906.62 is: 130,397.56
Step by Step Solution
- Step 1: Write the proportion equation
161,873.97 : 242,881.04 = 86,906.62 : x - Step 2: Convert to fraction form
161,873.97/242,881.04 = 86,906.62/x - Step 3: Cross multiply
161,873.97x = 242,881.04 × 86,906.62 - Step 4: Simplify right side
161,873.97x = 21,107,970,248.48 - Step 5: Solve for x
x = 21,107,970,248.48/161,873.97 - Step 6: Final answer
x = 130,397.56
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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.