Finding the Fourth Proportional to 122,775.20, 184,161.98 and 31,590.46
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Solution
The fourth proportional to 122,775.20, 184,161.98 and 31,590.46 is: 47,385.48
Step by Step Solution
- Step 1: Write the proportion equation
122,775.20 : 184,161.98 = 31,590.46 : x - Step 2: Convert to fraction form
122,775.20/184,161.98 = 31,590.46/x - Step 3: Cross multiply
122,775.20x = 184,161.98 × 31,590.46 - Step 4: Simplify right side
122,775.20x = 5,817,761,662.71 - Step 5: Solve for x
x = 5,817,761,662.71/122,775.20 - Step 6: Final answer
x = 47,385.48
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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.