Finding the Fourth Proportional to 125,202.81, 172,779.84 and 68,614.14
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Solution
The fourth proportional to 125,202.81, 172,779.84 and 68,614.14 is: 94,687.49
Step by Step Solution
- Step 1: Write the proportion equation
125,202.81 : 172,779.84 = 68,614.14 : x - Step 2: Convert to fraction form
125,202.81/172,779.84 = 68,614.14/x - Step 3: Cross multiply
125,202.81x = 172,779.84 × 68,614.14 - Step 4: Simplify right side
125,202.81x = 11,855,140,130.94 - Step 5: Solve for x
x = 11,855,140,130.94/125,202.81 - Step 6: Final answer
x = 94,687.49
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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.