Finding the Fourth Proportional to 138,386.21, 206,821.08 and 101,024.96
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Solution
The fourth proportional to 138,386.21, 206,821.08 and 101,024.96 is: 150,983.91
Step by Step Solution
- Step 1: Write the proportion equation
138,386.21 : 206,821.08 = 101,024.96 : x - Step 2: Convert to fraction form
138,386.21/206,821.08 = 101,024.96/x - Step 3: Cross multiply
138,386.21x = 206,821.08 × 101,024.96 - Step 4: Simplify right side
138,386.21x = 20,894,090,300.05 - Step 5: Solve for x
x = 20,894,090,300.05/138,386.21 - Step 6: Final answer
x = 150,983.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.