Finding the Fourth Proportional to 136,012.26, 187,684.98 and 75,579.08
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Solution
The fourth proportional to 136,012.26, 187,684.98 and 75,579.08 is: 104,292.49
Step by Step Solution
- Step 1: Write the proportion equation
136,012.26 : 187,684.98 = 75,579.08 : x - Step 2: Convert to fraction form
136,012.26/187,684.98 = 75,579.08/x - Step 3: Cross multiply
136,012.26x = 187,684.98 × 75,579.08 - Step 4: Simplify right side
136,012.26x = 14,185,057,179.79 - Step 5: Solve for x
x = 14,185,057,179.79/136,012.26 - Step 6: Final answer
x = 104,292.49
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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.