Finding the Fourth Proportional to 160,717.05, 221,812.07 and 99,482.87
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Solution
The fourth proportional to 160,717.05, 221,812.07 and 99,482.87 is: 137,300.31
Step by Step Solution
- Step 1: Write the proportion equation
160,717.05 : 221,812.07 = 99,482.87 : x - Step 2: Convert to fraction form
160,717.05/221,812.07 = 99,482.87/x - Step 3: Cross multiply
160,717.05x = 221,812.07 × 99,482.87 - Step 4: Simplify right side
160,717.05x = 22,066,501,324.24 - Step 5: Solve for x
x = 22,066,501,324.24/160,717.05 - Step 6: Final answer
x = 137,300.31
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1.5x scale
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.