Finding the Fourth Proportional to 131,910.08, 197,791.12 and 56,983.44
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Solution
The fourth proportional to 131,910.08, 197,791.12 and 56,983.44 is: 85,443.19
Step by Step Solution
- Step 1: Write the proportion equation
131,910.08 : 197,791.12 = 56,983.44 : x - Step 2: Convert to fraction form
131,910.08/197,791.12 = 56,983.44/x - Step 3: Cross multiply
131,910.08x = 197,791.12 × 56,983.44 - Step 4: Simplify right side
131,910.08x = 11,270,818,419.05 - Step 5: Solve for x
x = 11,270,818,419.05/131,910.08 - Step 6: Final answer
x = 85,443.19
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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.