Finding the Fourth Proportional to 106,409.16, 146,844.65 and 61,090.09
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Solution
The fourth proportional to 106,409.16, 146,844.65 and 61,090.09 is: 84,304.33
Step by Step Solution
- Step 1: Write the proportion equation
106,409.16 : 146,844.65 = 61,090.09 : x - Step 2: Convert to fraction form
106,409.16/146,844.65 = 61,090.09/x - Step 3: Cross multiply
106,409.16x = 146,844.65 × 61,090.09 - Step 4: Simplify right side
106,409.16x = 8,970,752,670.13 - Step 5: Solve for x
x = 8,970,752,670.13/106,409.16 - Step 6: Final answer
x = 84,304.33
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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.