Finding the Fourth Proportional to 158,915.62, 219,303.70 and 87,300.26
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Solution
The fourth proportional to 158,915.62, 219,303.70 and 87,300.26 is: 120,474.43
Step by Step Solution
- Step 1: Write the proportion equation
158,915.62 : 219,303.70 = 87,300.26 : x - Step 2: Convert to fraction form
158,915.62/219,303.70 = 87,300.26/x - Step 3: Cross multiply
158,915.62x = 219,303.70 × 87,300.26 - Step 4: Simplify right side
158,915.62x = 19,145,269,410.85 - Step 5: Solve for x
x = 19,145,269,410.85/158,915.62 - Step 6: Final answer
x = 120,474.43
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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.