Finding the Fourth Proportional to 161,553.24, 242,258.58 and 86,650.92
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Solution
The fourth proportional to 161,553.24, 242,258.58 and 86,650.92 is: 129,938.15
Step by Step Solution
- Step 1: Write the proportion equation
161,553.24 : 242,258.58 = 86,650.92 : x - Step 2: Convert to fraction form
161,553.24/242,258.58 = 86,650.92/x - Step 3: Cross multiply
161,553.24x = 242,258.58 × 86,650.92 - Step 4: Simplify right side
161,553.24x = 20,991,928,834.89 - Step 5: Solve for x
x = 20,991,928,834.89/161,553.24 - Step 6: Final answer
x = 129,938.15
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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.