Finding the Fourth Proportional to 99,158.24, 136,798.80 and 63,338.96
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Solution
The fourth proportional to 99,158.24, 136,798.80 and 63,338.96 is: 87,382.49
Step by Step Solution
- Step 1: Write the proportion equation
99,158.24 : 136,798.80 = 63,338.96 : x - Step 2: Convert to fraction form
99,158.24/136,798.80 = 63,338.96/x - Step 3: Cross multiply
99,158.24x = 136,798.80 × 63,338.96 - Step 4: Simplify right side
99,158.24x = 8,664,693,721.25 - Step 5: Solve for x
x = 8,664,693,721.25/99,158.24 - Step 6: Final answer
x = 87,382.49
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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.