Finding the Fourth Proportional to 159,863.84, 220,614.81 and 87,270.48
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Solution
The fourth proportional to 159,863.84, 220,614.81 and 87,270.48 is: 120,434.74
Step by Step Solution
- Step 1: Write the proportion equation
159,863.84 : 220,614.81 = 87,270.48 : x - Step 2: Convert to fraction form
159,863.84/220,614.81 = 87,270.48/x - Step 3: Cross multiply
159,863.84x = 220,614.81 × 87,270.48 - Step 4: Simplify right side
159,863.84x = 19,253,160,363.81 - Step 5: Solve for x
x = 19,253,160,363.81/159,863.84 - Step 6: Final answer
x = 120,434.74
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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.