Finding the Fourth Proportional to 161,854.19, 242,879.70 and 68,359.94
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Solution
The fourth proportional to 161,854.19, 242,879.70 and 68,359.94 is: 102,581.48
Step by Step Solution
- Step 1: Write the proportion equation
161,854.19 : 242,879.70 = 68,359.94 : x - Step 2: Convert to fraction form
161,854.19/242,879.70 = 68,359.94/x - Step 3: Cross multiply
161,854.19x = 242,879.70 × 68,359.94 - Step 4: Simplify right side
161,854.19x = 16,603,241,719.22 - Step 5: Solve for x
x = 16,603,241,719.22/161,854.19 - Step 6: Final answer
x = 102,581.48
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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.