Finding the Fourth Proportional to 145,703.70, 201,087.09 and 91,985.94
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Solution
The fourth proportional to 145,703.70, 201,087.09 and 91,985.94 is: 126,950.69
Step by Step Solution
- Step 1: Write the proportion equation
145,703.70 : 201,087.09 = 91,985.94 : x - Step 2: Convert to fraction form
145,703.70/201,087.09 = 91,985.94/x - Step 3: Cross multiply
145,703.70x = 201,087.09 × 91,985.94 - Step 4: Simplify right side
145,703.70x = 18,497,184,995.51 - Step 5: Solve for x
x = 18,497,184,995.51/145,703.70 - Step 6: Final answer
x = 126,950.69
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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.