Finding the Fourth Proportional to 149,531.58, 206,350.98 and 81,549.08
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Solution
The fourth proportional to 149,531.58, 206,350.98 and 81,549.08 is: 112,536.31
Step by Step Solution
- Step 1: Write the proportion equation
149,531.58 : 206,350.98 = 81,549.08 : x - Step 2: Convert to fraction form
149,531.58/206,350.98 = 81,549.08/x - Step 3: Cross multiply
149,531.58x = 206,350.98 × 81,549.08 - Step 4: Simplify right side
149,531.58x = 16,827,732,576.10 - Step 5: Solve for x
x = 16,827,732,576.10/149,531.58 - Step 6: Final answer
x = 112,536.31
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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.