Finding the Fourth Proportional to 187,272.48, 258,372.72 and 106,642.84
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Solution
The fourth proportional to 187,272.48, 258,372.72 and 106,642.84 is: 147,131.07
Step by Step Solution
- Step 1: Write the proportion equation
187,272.48 : 258,372.72 = 106,642.84 : x - Step 2: Convert to fraction form
187,272.48/258,372.72 = 106,642.84/x - Step 3: Cross multiply
187,272.48x = 258,372.72 × 106,642.84 - Step 4: Simplify right side
187,272.48x = 27,553,600,639.32 - Step 5: Solve for x
x = 27,553,600,639.32/187,272.48 - Step 6: Final answer
x = 147,131.07
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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.