Finding the Fourth Proportional to 141,808.34, 195,692.99 and 77,278.14
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Solution
The fourth proportional to 141,808.34, 195,692.99 and 77,278.14 is: 106,642.46
Step by Step Solution
- Step 1: Write the proportion equation
141,808.34 : 195,692.99 = 77,278.14 : x - Step 2: Convert to fraction form
141,808.34/195,692.99 = 77,278.14/x - Step 3: Cross multiply
141,808.34x = 195,692.99 × 77,278.14 - Step 4: Simplify right side
141,808.34x = 15,122,790,278.24 - Step 5: Solve for x
x = 15,122,790,278.24/141,808.34 - Step 6: Final answer
x = 106,642.46
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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.