Finding the Fourth Proportional to 121,300.79, 181,098.24 and 92,687.99
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Solution
The fourth proportional to 121,300.79, 181,098.24 and 92,687.99 is: 138,380.23
Step by Step Solution
- Step 1: Write the proportion equation
121,300.79 : 181,098.24 = 92,687.99 : x - Step 2: Convert to fraction form
121,300.79/181,098.24 = 92,687.99/x - Step 3: Cross multiply
121,300.79x = 181,098.24 × 92,687.99 - Step 4: Simplify right side
121,300.79x = 16,785,630,952.65 - Step 5: Solve for x
x = 16,785,630,952.65/121,300.79 - Step 6: Final answer
x = 138,380.23
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.