Finding the Fourth Proportional to 99,745.98, 149,617.35 and 47,193.18
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Solution
The fourth proportional to 99,745.98, 149,617.35 and 47,193.18 is: 70,789.00
Step by Step Solution
- Step 1: Write the proportion equation
99,745.98 : 149,617.35 = 47,193.18 : x - Step 2: Convert to fraction form
99,745.98/149,617.35 = 47,193.18/x - Step 3: Cross multiply
99,745.98x = 149,617.35 × 47,193.18 - Step 4: Simplify right side
99,745.98x = 7,060,918,529.67 - Step 5: Solve for x
x = 7,060,918,529.67/99,745.98 - Step 6: Final answer
x = 70,789.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.