Finding the Fourth Proportional to 135,593.54, 187,117.14 and 78,232.94
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Solution
The fourth proportional to 135,593.54, 187,117.14 and 78,232.94 is: 107,960.33
Step by Step Solution
- Step 1: Write the proportion equation
135,593.54 : 187,117.14 = 78,232.94 : x - Step 2: Convert to fraction form
135,593.54/187,117.14 = 78,232.94/x - Step 3: Cross multiply
135,593.54x = 187,117.14 × 78,232.94 - Step 4: Simplify right side
135,593.54x = 14,638,723,606.01 - Step 5: Solve for x
x = 14,638,723,606.01/135,593.54 - Step 6: Final answer
x = 107,960.33
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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.