Finding the Fourth Proportional to 135,657.75, 187,207.71 and 75,237.63
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Solution
The fourth proportional to 135,657.75, 187,207.71 and 75,237.63 is: 103,827.94
Step by Step Solution
- Step 1: Write the proportion equation
135,657.75 : 187,207.71 = 75,237.63 : x - Step 2: Convert to fraction form
135,657.75/187,207.71 = 75,237.63/x - Step 3: Cross multiply
135,657.75x = 187,207.71 × 75,237.63 - Step 4: Simplify right side
135,657.75x = 14,085,064,418.13 - Step 5: Solve for x
x = 14,085,064,418.13/135,657.75 - Step 6: Final answer
x = 103,827.94
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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.