Finding the Fourth Proportional to 139,446.24, 192,437.04 and 75,784.08
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Solution
The fourth proportional to 139,446.24, 192,437.04 and 75,784.08 is: 104,582.70
Step by Step Solution
- Step 1: Write the proportion equation
139,446.24 : 192,437.04 = 75,784.08 : x - Step 2: Convert to fraction form
139,446.24/192,437.04 = 75,784.08/x - Step 3: Cross multiply
139,446.24x = 192,437.04 × 75,784.08 - Step 4: Simplify right side
139,446.24x = 14,583,664,034.32 - Step 5: Solve for x
x = 14,583,664,034.32/139,446.24 - Step 6: Final answer
x = 104,582.70
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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.