Finding the Fourth Proportional to 160,243.19, 221,126.66 and 87,631.75
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Solution
The fourth proportional to 160,243.19, 221,126.66 and 87,631.75 is: 120,926.93
Step by Step Solution
- Step 1: Write the proportion equation
160,243.19 : 221,126.66 = 87,631.75 : x - Step 2: Convert to fraction form
160,243.19/221,126.66 = 87,631.75/x - Step 3: Cross multiply
160,243.19x = 221,126.66 × 87,631.75 - Step 4: Simplify right side
160,243.19x = 19,377,716,354.32 - Step 5: Solve for x
x = 19,377,716,354.32/160,243.19 - Step 6: Final answer
x = 120,926.93
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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.