Finding the Fourth Proportional to 135,660.86, 187,212.41 and 75,237.09
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Solution
The fourth proportional to 135,660.86, 187,212.41 and 75,237.09 is: 103,827.42
Step by Step Solution
- Step 1: Write the proportion equation
135,660.86 : 187,212.41 = 75,237.09 : x - Step 2: Convert to fraction form
135,660.86/187,212.41 = 75,237.09/x - Step 3: Cross multiply
135,660.86x = 187,212.41 × 75,237.09 - Step 4: Simplify right side
135,660.86x = 14,085,316,567.40 - Step 5: Solve for x
x = 14,085,316,567.40/135,660.86 - Step 6: Final answer
x = 103,827.42
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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.