Finding the Fourth Proportional to 158,893.75, 219,276.82 and 87,277.70
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Solution
The fourth proportional to 158,893.75, 219,276.82 and 87,277.70 is: 120,445.12
Step by Step Solution
- Step 1: Write the proportion equation
158,893.75 : 219,276.82 = 87,277.70 : x - Step 2: Convert to fraction form
158,893.75/219,276.82 = 87,277.70/x - Step 3: Cross multiply
158,893.75x = 219,276.82 × 87,277.70 - Step 4: Simplify right side
158,893.75x = 19,137,977,170.20 - Step 5: Solve for x
x = 19,137,977,170.20/158,893.75 - Step 6: Final answer
x = 120,445.12
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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.