Finding the Fourth Proportional to 106,006.80, 159,009.08 and 27,120.40
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Solution
The fourth proportional to 106,006.80, 159,009.08 and 27,120.40 is: 40,680.31
Step by Step Solution
- Step 1: Write the proportion equation
106,006.80 : 159,009.08 = 27,120.40 : x - Step 2: Convert to fraction form
106,006.80/159,009.08 = 27,120.40/x - Step 3: Cross multiply
106,006.80x = 159,009.08 × 27,120.40 - Step 4: Simplify right side
106,006.80x = 4,312,389,853.23 - Step 5: Solve for x
x = 4,312,389,853.23/106,006.80 - Step 6: Final answer
x = 40,680.31
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1.5x scale
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.