Finding the Fourth Proportional to 106,220.24, 159,428.64 and 53,666.48
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Solution
The fourth proportional to 106,220.24, 159,428.64 and 53,666.48 is: 80,549.37
Step by Step Solution
- Step 1: Write the proportion equation
106,220.24 : 159,428.64 = 53,666.48 : x - Step 2: Convert to fraction form
106,220.24/159,428.64 = 53,666.48/x - Step 3: Cross multiply
106,220.24x = 159,428.64 × 53,666.48 - Step 4: Simplify right side
106,220.24x = 8,555,973,919.99 - Step 5: Solve for x
x = 8,555,973,919.99/106,220.24 - Step 6: Final answer
x = 80,549.37
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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.