Finding the Fourth Proportional to 106,005.40, 159,008.10 and 27,125.80
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Solution
The fourth proportional to 106,005.40, 159,008.10 and 27,125.80 is: 40,688.70
Step by Step Solution
- Step 1: Write the proportion equation
106,005.40 : 159,008.10 = 27,125.80 : x - Step 2: Convert to fraction form
106,005.40/159,008.10 = 27,125.80/x - Step 3: Cross multiply
106,005.40x = 159,008.10 × 27,125.80 - Step 4: Simplify right side
106,005.40x = 4,313,221,918.98 - Step 5: Solve for x
x = 4,313,221,918.98/106,005.40 - Step 6: Final answer
x = 40,688.70
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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.