Finding the Fourth Proportional to 158,176.29, 236,966.37 and 78,120.55
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Solution
The fourth proportional to 158,176.29, 236,966.37 and 78,120.55 is: 117,033.62
Step by Step Solution
- Step 1: Write the proportion equation
158,176.29 : 236,966.37 = 78,120.55 : x - Step 2: Convert to fraction form
158,176.29/236,966.37 = 78,120.55/x - Step 3: Cross multiply
158,176.29x = 236,966.37 × 78,120.55 - Step 4: Simplify right side
158,176.29x = 18,511,943,155.90 - Step 5: Solve for x
x = 18,511,943,155.90/158,176.29 - Step 6: Final answer
x = 117,033.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.