Finding the Fourth Proportional to 136,234.10, 188,000.10 and 78,875.84
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Solution
The fourth proportional to 136,234.10, 188,000.10 and 78,875.84 is: 108,846.95
Step by Step Solution
- Step 1: Write the proportion equation
136,234.10 : 188,000.10 = 78,875.84 : x - Step 2: Convert to fraction form
136,234.10/188,000.10 = 78,875.84/x - Step 3: Cross multiply
136,234.10x = 188,000.10 × 78,875.84 - Step 4: Simplify right side
136,234.10x = 14,828,665,807.58 - Step 5: Solve for x
x = 14,828,665,807.58/136,234.10 - Step 6: Final answer
x = 108,846.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.