Finding the Fourth Proportional to 115,827.09, 159,758.98 and 106,297.74
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Solution
The fourth proportional to 115,827.09, 159,758.98 and 106,297.74 is: 146,615.26
Step by Step Solution
- Step 1: Write the proportion equation
115,827.09 : 159,758.98 = 106,297.74 : x - Step 2: Convert to fraction form
115,827.09/159,758.98 = 106,297.74/x - Step 3: Cross multiply
115,827.09x = 159,758.98 × 106,297.74 - Step 4: Simplify right side
115,827.09x = 16,982,019,300.21 - Step 5: Solve for x
x = 16,982,019,300.21/115,827.09 - Step 6: Final answer
x = 146,615.26
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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.