Finding the Fourth Proportional to 136,153.02, 187,863.36 and 79,553.46
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Solution
The fourth proportional to 136,153.02, 187,863.36 and 79,553.46 is: 109,767.53
Step by Step Solution
- Step 1: Write the proportion equation
136,153.02 : 187,863.36 = 79,553.46 : x - Step 2: Convert to fraction form
136,153.02/187,863.36 = 79,553.46/x - Step 3: Cross multiply
136,153.02x = 187,863.36 × 79,553.46 - Step 4: Simplify right side
136,153.02x = 14,945,180,295.23 - Step 5: Solve for x
x = 14,945,180,295.23/136,153.02 - Step 6: Final answer
x = 109,767.53
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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.