Finding the Fourth Proportional to 149,386.24, 206,150.34 and 81,403.66
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Solution
The fourth proportional to 149,386.24, 206,150.34 and 81,403.66 is: 112,335.60
Step by Step Solution
- Step 1: Write the proportion equation
149,386.24 : 206,150.34 = 81,403.66 : x - Step 2: Convert to fraction form
149,386.24/206,150.34 = 81,403.66/x - Step 3: Cross multiply
149,386.24x = 206,150.34 × 81,403.66 - Step 4: Simplify right side
149,386.24x = 16,781,392,186.24 - Step 5: Solve for x
x = 16,781,392,186.24/149,386.24 - Step 6: Final answer
x = 112,335.60
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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.