Finding the Fourth Proportional to 131,826.08, 197,768.28 and 72,631.28
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Solution
The fourth proportional to 131,826.08, 197,768.28 and 72,631.28 is: 108,962.99
Step by Step Solution
- Step 1: Write the proportion equation
131,826.08 : 197,768.28 = 72,631.28 : x - Step 2: Convert to fraction form
131,826.08/197,768.28 = 72,631.28/x - Step 3: Cross multiply
131,826.08x = 197,768.28 × 72,631.28 - Step 4: Simplify right side
131,826.08x = 14,364,163,319.80 - Step 5: Solve for x
x = 14,364,163,319.80/131,826.08 - Step 6: Final answer
x = 108,962.99
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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.