Finding the Fourth Proportional to 158,914.20, 219,302.19 and 87,295.62
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Solution
The fourth proportional to 158,914.20, 219,302.19 and 87,295.62 is: 120,468.28
Step by Step Solution
- Step 1: Write the proportion equation
158,914.20 : 219,302.19 = 87,295.62 : x - Step 2: Convert to fraction form
158,914.20/219,302.19 = 87,295.62/x - Step 3: Cross multiply
158,914.20x = 219,302.19 × 87,295.62 - Step 4: Simplify right side
158,914.20x = 19,144,120,643.41 - Step 5: Solve for x
x = 19,144,120,643.41/158,914.20 - Step 6: Final answer
x = 120,468.28
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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.