Finding the Fourth Proportional to 124,723.99, 172,116.49 and 70,278.96
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Solution
The fourth proportional to 124,723.99, 172,116.49 and 70,278.96 is: 96,983.49
Step by Step Solution
- Step 1: Write the proportion equation
124,723.99 : 172,116.49 = 70,278.96 : x - Step 2: Convert to fraction form
124,723.99/172,116.49 = 70,278.96/x - Step 3: Cross multiply
124,723.99x = 172,116.49 × 70,278.96 - Step 4: Simplify right side
124,723.99x = 12,096,167,916.05 - Step 5: Solve for x
x = 12,096,167,916.05/124,723.99 - Step 6: Final answer
x = 96,983.49
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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.