Finding the Fourth Proportional to 99,122.21, 136,784.99 and 53,799.23
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Solution
The fourth proportional to 99,122.21, 136,784.99 and 53,799.23 is: 74,240.95
Step by Step Solution
- Step 1: Write the proportion equation
99,122.21 : 136,784.99 = 53,799.23 : x - Step 2: Convert to fraction form
99,122.21/136,784.99 = 53,799.23/x - Step 3: Cross multiply
99,122.21x = 136,784.99 × 53,799.23 - Step 4: Simplify right side
99,122.21x = 7,358,926,184.64 - Step 5: Solve for x
x = 7,358,926,184.64/99,122.21 - Step 6: Final answer
x = 74,240.95
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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.