Finding the Fourth Proportional to 149,131.02, 205,877.06 and 115,062.96
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Solution
The fourth proportional to 149,131.02, 205,877.06 and 115,062.96 is: 158,845.72
Step by Step Solution
- Step 1: Write the proportion equation
149,131.02 : 205,877.06 = 115,062.96 : x - Step 2: Convert to fraction form
149,131.02/205,877.06 = 115,062.96/x - Step 3: Cross multiply
149,131.02x = 205,877.06 × 115,062.96 - Step 4: Simplify right side
149,131.02x = 23,688,823,919.70 - Step 5: Solve for x
x = 23,688,823,919.70/149,131.02 - Step 6: Final answer
x = 158,845.72
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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.