Finding the Fourth Proportional to 120,603.50, 166,444.98 and 66,898.99
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Solution
The fourth proportional to 120,603.50, 166,444.98 and 66,898.99 is: 92,327.34
Step by Step Solution
- Step 1: Write the proportion equation
120,603.50 : 166,444.98 = 66,898.99 : x - Step 2: Convert to fraction form
120,603.50/166,444.98 = 66,898.99/x - Step 3: Cross multiply
120,603.50x = 166,444.98 × 66,898.99 - Step 4: Simplify right side
120,603.50x = 11,135,000,220.35 - Step 5: Solve for x
x = 11,135,000,220.35/120,603.50 - Step 6: Final answer
x = 92,327.34
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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.