Finding the Fourth Proportional to 87,962.70, 131,695.65 and 68,468.70
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Solution
The fourth proportional to 87,962.70, 131,695.65 and 68,468.70 is: 102,509.70
Step by Step Solution
- Step 1: Write the proportion equation
87,962.70 : 131,695.65 = 68,468.70 : x - Step 2: Convert to fraction form
87,962.70/131,695.65 = 68,468.70/x - Step 3: Cross multiply
87,962.70x = 131,695.65 × 68,468.70 - Step 4: Simplify right side
87,962.70x = 9,017,029,951.16 - Step 5: Solve for x
x = 9,017,029,951.16/87,962.70 - Step 6: Final answer
x = 102,509.70
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1.5x scale
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.