Finding the Fourth Proportional to 131,555.10, 197,241.12 and 56,652.78
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Solution
The fourth proportional to 131,555.10, 197,241.12 and 56,652.78 is: 84,939.75
Step by Step Solution
- Step 1: Write the proportion equation
131,555.10 : 197,241.12 = 56,652.78 : x - Step 2: Convert to fraction form
131,555.10/197,241.12 = 56,652.78/x - Step 3: Cross multiply
131,555.10x = 197,241.12 × 56,652.78 - Step 4: Simplify right side
131,555.10x = 11,174,257,778.31 - Step 5: Solve for x
x = 11,174,257,778.31/131,555.10 - Step 6: Final answer
x = 84,939.75
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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.