Finding the Fourth Proportional to 146,067.84, 201,574.08 and 78,999.84
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Solution
The fourth proportional to 146,067.84, 201,574.08 and 78,999.84 is: 109,020.03
Step by Step Solution
- Step 1: Write the proportion equation
146,067.84 : 201,574.08 = 78,999.84 : x - Step 2: Convert to fraction form
146,067.84/201,574.08 = 78,999.84/x - Step 3: Cross multiply
146,067.84x = 201,574.08 × 78,999.84 - Step 4: Simplify right side
146,067.84x = 15,924,320,068.15 - Step 5: Solve for x
x = 15,924,320,068.15/146,067.84 - Step 6: Final answer
x = 109,020.03
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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.