Finding the Fourth Proportional to 135,905.34, 187,555.60 and 75,476.26
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Solution
The fourth proportional to 135,905.34, 187,555.60 and 75,476.26 is: 104,160.70
Step by Step Solution
- Step 1: Write the proportion equation
135,905.34 : 187,555.60 = 75,476.26 : x - Step 2: Convert to fraction form
135,905.34/187,555.60 = 75,476.26/x - Step 3: Cross multiply
135,905.34x = 187,555.60 × 75,476.26 - Step 4: Simplify right side
135,905.34x = 14,155,995,230.06 - Step 5: Solve for x
x = 14,155,995,230.06/135,905.34 - Step 6: Final answer
x = 104,160.70
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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.