Finding the Fourth Proportional to 120,807.18, 181,057.68 and 68,246.28
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Solution
The fourth proportional to 120,807.18, 181,057.68 and 68,246.28 is: 102,282.94
Step by Step Solution
- Step 1: Write the proportion equation
120,807.18 : 181,057.68 = 68,246.28 : x - Step 2: Convert to fraction form
120,807.18/181,057.68 = 68,246.28/x - Step 3: Cross multiply
120,807.18x = 181,057.68 × 68,246.28 - Step 4: Simplify right side
120,807.18x = 12,356,513,125.43 - Step 5: Solve for x
x = 12,356,513,125.43/120,807.18 - Step 6: Final answer
x = 102,282.94
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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.