Finding the Fourth Proportional to 134,778.80, 202,334.60 and 84,858.80
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Solution
The fourth proportional to 134,778.80, 202,334.60 and 84,858.80 is: 127,392.97
Step by Step Solution
- Step 1: Write the proportion equation
134,778.80 : 202,334.60 = 84,858.80 : x - Step 2: Convert to fraction form
134,778.80/202,334.60 = 84,858.80/x - Step 3: Cross multiply
134,778.80x = 202,334.60 × 84,858.80 - Step 4: Simplify right side
134,778.80x = 17,169,871,354.48 - Step 5: Solve for x
x = 17,169,871,354.48/134,778.80 - Step 6: Final answer
x = 127,392.97
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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.