Finding the Fourth Proportional to 187,659.25, 258,960.14 and 102,774.49
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Solution
The fourth proportional to 187,659.25, 258,960.14 and 102,774.49 is: 141,823.52
Step by Step Solution
- Step 1: Write the proportion equation
187,659.25 : 258,960.14 = 102,774.49 : x - Step 2: Convert to fraction form
187,659.25/258,960.14 = 102,774.49/x - Step 3: Cross multiply
187,659.25x = 258,960.14 × 102,774.49 - Step 4: Simplify right side
187,659.25x = 26,614,495,542.96 - Step 5: Solve for x
x = 26,614,495,542.96/187,659.25 - Step 6: Final answer
x = 141,823.52
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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.