Finding the Fourth Proportional to 99,317.12, 148,974.42 and 24,438.20
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Solution
The fourth proportional to 99,317.12, 148,974.42 and 24,438.20 is: 36,656.99
Step by Step Solution
- Step 1: Write the proportion equation
99,317.12 : 148,974.42 = 24,438.20 : x - Step 2: Convert to fraction form
99,317.12/148,974.42 = 24,438.20/x - Step 3: Cross multiply
99,317.12x = 148,974.42 × 24,438.20 - Step 4: Simplify right side
99,317.12x = 3,640,666,670.84 - Step 5: Solve for x
x = 3,640,666,670.84/99,317.12 - Step 6: Final answer
x = 36,656.99
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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.