Finding the Fourth Proportional to 121,860.24, 182,844.84 and 77,475.12
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Solution
The fourth proportional to 121,860.24, 182,844.84 and 77,475.12 is: 116,247.32
Step by Step Solution
- Step 1: Write the proportion equation
121,860.24 : 182,844.84 = 77,475.12 : x - Step 2: Convert to fraction form
121,860.24/182,844.84 = 77,475.12/x - Step 3: Cross multiply
121,860.24x = 182,844.84 × 77,475.12 - Step 4: Simplify right side
121,860.24x = 14,165,925,920.38 - Step 5: Solve for x
x = 14,165,925,920.38/121,860.24 - Step 6: Final answer
x = 116,247.32
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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.