Finding the Fourth Proportional to 128,590.62, 192,898.62 and 44,339.70
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Solution
The fourth proportional to 128,590.62, 192,898.62 and 44,339.70 is: 66,513.93
Step by Step Solution
- Step 1: Write the proportion equation
128,590.62 : 192,898.62 = 44,339.70 : x - Step 2: Convert to fraction form
128,590.62/192,898.62 = 44,339.70/x - Step 3: Cross multiply
128,590.62x = 192,898.62 × 44,339.70 - Step 4: Simplify right side
128,590.62x = 8,553,066,941.21 - Step 5: Solve for x
x = 8,553,066,941.21/128,590.62 - Step 6: Final answer
x = 66,513.93
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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.