Finding the Fourth Proportional to 149,450.81, 206,242.13 and 92,862.19
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Solution
The fourth proportional to 149,450.81, 206,242.13 and 92,862.19 is: 128,149.82
Step by Step Solution
- Step 1: Write the proportion equation
149,450.81 : 206,242.13 = 92,862.19 : x - Step 2: Convert to fraction form
149,450.81/206,242.13 = 92,862.19/x - Step 3: Cross multiply
149,450.81x = 206,242.13 × 92,862.19 - Step 4: Simplify right side
149,450.81x = 19,152,094,882.15 - Step 5: Solve for x
x = 19,152,094,882.15/149,450.81 - Step 6: Final answer
x = 128,149.82
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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.