Finding the Fourth Proportional to 170,058.18, 254,918.01 and 81,207.81
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Solution
The fourth proportional to 170,058.18, 254,918.01 and 81,207.81 is: 121,730.89
Step by Step Solution
- Step 1: Write the proportion equation
170,058.18 : 254,918.01 = 81,207.81 : x - Step 2: Convert to fraction form
170,058.18/254,918.01 = 81,207.81/x - Step 3: Cross multiply
170,058.18x = 254,918.01 × 81,207.81 - Step 4: Simplify right side
170,058.18x = 20,701,333,552.91 - Step 5: Solve for x
x = 20,701,333,552.91/170,058.18 - Step 6: Final answer
x = 121,730.89
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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.