Finding the Fourth Proportional to 159,356.24, 219,909.84 and 87,734.80
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Solution
The fourth proportional to 159,356.24, 219,909.84 and 87,734.80 is: 121,073.05
Step by Step Solution
- Step 1: Write the proportion equation
159,356.24 : 219,909.84 = 87,734.80 : x - Step 2: Convert to fraction form
159,356.24/219,909.84 = 87,734.80/x - Step 3: Cross multiply
159,356.24x = 219,909.84 × 87,734.80 - Step 4: Simplify right side
159,356.24x = 19,293,745,830.43 - Step 5: Solve for x
x = 19,293,745,830.43/159,356.24 - Step 6: Final answer
x = 121,073.05
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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.