Finding the Fourth Proportional to 106,455.29, 159,655.68 and 31,557.92
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Solution
The fourth proportional to 106,455.29, 159,655.68 and 31,557.92 is: 47,328.80
Step by Step Solution
- Step 1: Write the proportion equation
106,455.29 : 159,655.68 = 31,557.92 : x - Step 2: Convert to fraction form
106,455.29/159,655.68 = 31,557.92/x - Step 3: Cross multiply
106,455.29x = 159,655.68 × 31,557.92 - Step 4: Simplify right side
106,455.29x = 5,038,401,176.99 - Step 5: Solve for x
x = 5,038,401,176.99/106,455.29 - Step 6: Final answer
x = 47,328.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.