Finding the Fourth Proportional to 141,927.24, 195,855.12 and 78,267.72
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Solution
The fourth proportional to 141,927.24, 195,855.12 and 78,267.72 is: 108,006.99
Step by Step Solution
- Step 1: Write the proportion equation
141,927.24 : 195,855.12 = 78,267.72 : x - Step 2: Convert to fraction form
141,927.24/195,855.12 = 78,267.72/x - Step 3: Cross multiply
141,927.24x = 195,855.12 × 78,267.72 - Step 4: Simplify right side
141,927.24x = 15,329,133,692.73 - Step 5: Solve for x
x = 15,329,133,692.73/141,927.24 - Step 6: Final answer
x = 108,006.99
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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.