Finding the Fourth Proportional to 125,242.30, 187,445.14 and 74,476.56
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Solution
The fourth proportional to 125,242.30, 187,445.14 and 74,476.56 is: 111,466.09
Step by Step Solution
- Step 1: Write the proportion equation
125,242.30 : 187,445.14 = 74,476.56 : x - Step 2: Convert to fraction form
125,242.30/187,445.14 = 74,476.56/x - Step 3: Cross multiply
125,242.30x = 187,445.14 × 74,476.56 - Step 4: Simplify right side
125,242.30x = 13,960,269,732.65 - Step 5: Solve for x
x = 13,960,269,732.65/125,242.30 - Step 6: Final answer
x = 111,466.09
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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.