Finding the Fourth Proportional to 149,878.26, 206,829.50 and 81,893.75
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Solution
The fourth proportional to 149,878.26, 206,829.50 and 81,893.75 is: 113,012.00
Step by Step Solution
- Step 1: Write the proportion equation
149,878.26 : 206,829.50 = 81,893.75 : x - Step 2: Convert to fraction form
149,878.26/206,829.50 = 81,893.75/x - Step 3: Cross multiply
149,878.26x = 206,829.50 × 81,893.75 - Step 4: Simplify right side
149,878.26x = 16,938,041,922.01 - Step 5: Solve for x
x = 16,938,041,922.01/149,878.26 - Step 6: Final answer
x = 113,012.00
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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.