Finding the Fourth Proportional to 135,711.06, 187,282.30 and 74,456.84
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Solution
The fourth proportional to 135,711.06, 187,282.30 and 74,456.84 is: 102,751.01
Step by Step Solution
- Step 1: Write the proportion equation
135,711.06 : 187,282.30 = 74,456.84 : x - Step 2: Convert to fraction form
135,711.06/187,282.30 = 74,456.84/x - Step 3: Cross multiply
135,711.06x = 187,282.30 × 74,456.84 - Step 4: Simplify right side
135,711.06x = 13,944,448,245.93 - Step 5: Solve for x
x = 13,944,448,245.93/135,711.06 - Step 6: Final answer
x = 102,751.01
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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.