Finding the Fourth Proportional to 136,153.08, 187,889.58 and 76,537.08
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Solution
The fourth proportional to 136,153.08, 187,889.58 and 76,537.08 is: 105,620.23
Step by Step Solution
- Step 1: Write the proportion equation
136,153.08 : 187,889.58 = 76,537.08 : x - Step 2: Convert to fraction form
136,153.08/187,889.58 = 76,537.08/x - Step 3: Cross multiply
136,153.08x = 187,889.58 × 76,537.08 - Step 4: Simplify right side
136,153.08x = 14,380,519,815.63 - Step 5: Solve for x
x = 14,380,519,815.63/136,153.08 - Step 6: Final answer
x = 105,620.23
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1.5x scale
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.