Finding the Fourth Proportional to 135,738.26, 187,312.48 and 75,308.26
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Solution
The fourth proportional to 135,738.26, 187,312.48 and 75,308.26 is: 103,921.89
Step by Step Solution
- Step 1: Write the proportion equation
135,738.26 : 187,312.48 = 75,308.26 : x - Step 2: Convert to fraction form
135,738.26/187,312.48 = 75,308.26/x - Step 3: Cross multiply
135,738.26x = 187,312.48 × 75,308.26 - Step 4: Simplify right side
135,738.26x = 14,106,176,945.08 - Step 5: Solve for x
x = 14,106,176,945.08/135,738.26 - Step 6: Final answer
x = 103,921.89
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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.