Finding the Fourth Proportional to 135,789.41, 187,380.66 and 84,799.08
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Solution
The fourth proportional to 135,789.41, 187,380.66 and 84,799.08 is: 117,017.28
Step by Step Solution
- Step 1: Write the proportion equation
135,789.41 : 187,380.66 = 84,799.08 : x - Step 2: Convert to fraction form
135,789.41/187,380.66 = 84,799.08/x - Step 3: Cross multiply
135,789.41x = 187,380.66 × 84,799.08 - Step 4: Simplify right side
135,789.41x = 15,889,707,259.80 - Step 5: Solve for x
x = 15,889,707,259.80/135,789.41 - Step 6: Final answer
x = 117,017.28
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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.