Finding the Fourth Proportional to 135,922.75, 187,573.40 and 76,306.75
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Solution
The fourth proportional to 135,922.75, 187,573.40 and 76,306.75 is: 105,303.32
Step by Step Solution
- Step 1: Write the proportion equation
135,922.75 : 187,573.40 = 76,306.75 : x - Step 2: Convert to fraction form
135,922.75/187,573.40 = 76,306.75/x - Step 3: Cross multiply
135,922.75x = 187,573.40 × 76,306.75 - Step 4: Simplify right side
135,922.75x = 14,313,116,540.45 - Step 5: Solve for x
x = 14,313,116,540.45/135,922.75 - Step 6: Final answer
x = 105,303.32
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1.5x scale
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.