Finding the Fourth Proportional to 159,349.95, 219,894.57 and 87,715.98
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Solution
The fourth proportional to 159,349.95, 219,894.57 and 87,715.98 is: 121,043.45
Step by Step Solution
- Step 1: Write the proportion equation
159,349.95 : 219,894.57 = 87,715.98 : x - Step 2: Convert to fraction form
159,349.95/219,894.57 = 87,715.98/x - Step 3: Cross multiply
159,349.95x = 219,894.57 × 87,715.98 - Step 4: Simplify right side
159,349.95x = 19,288,267,704.23 - Step 5: Solve for x
x = 19,288,267,704.23/159,349.95 - Step 6: Final answer
x = 121,043.45
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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.