Finding the Fourth Proportional to 122,268.20, 183,402.30 and 92,743.70
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Solution
The fourth proportional to 122,268.20, 183,402.30 and 92,743.70 is: 139,115.55
Step by Step Solution
- Step 1: Write the proportion equation
122,268.20 : 183,402.30 = 92,743.70 : x - Step 2: Convert to fraction form
122,268.20/183,402.30 = 92,743.70/x - Step 3: Cross multiply
122,268.20x = 183,402.30 × 92,743.70 - Step 4: Simplify right side
122,268.20x = 17,009,407,890.51 - Step 5: Solve for x
x = 17,009,407,890.51/122,268.20 - Step 6: Final answer
x = 139,115.55
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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.