Finding the Fourth Proportional to 105,692.07, 145,850.43 and 63,273.99
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Solution
The fourth proportional to 105,692.07, 145,850.43 and 63,273.99 is: 87,315.34
Step by Step Solution
- Step 1: Write the proportion equation
105,692.07 : 145,850.43 = 63,273.99 : x - Step 2: Convert to fraction form
105,692.07/145,850.43 = 63,273.99/x - Step 3: Cross multiply
105,692.07x = 145,850.43 × 63,273.99 - Step 4: Simplify right side
105,692.07x = 9,228,538,649.32 - Step 5: Solve for x
x = 9,228,538,649.32/105,692.07 - Step 6: Final answer
x = 87,315.34
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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.