Finding the Fourth Proportional to 124,381.24, 171,753.42 and 106,651.96
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Solution
The fourth proportional to 124,381.24, 171,753.42 and 106,651.96 is: 147,271.72
Step by Step Solution
- Step 1: Write the proportion equation
124,381.24 : 171,753.42 = 106,651.96 : x - Step 2: Convert to fraction form
124,381.24/171,753.42 = 106,651.96/x - Step 3: Cross multiply
124,381.24x = 171,753.42 × 106,651.96 - Step 4: Simplify right side
124,381.24x = 18,317,838,879.70 - Step 5: Solve for x
x = 18,317,838,879.70/124,381.24 - Step 6: Final answer
x = 147,271.72
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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.