Finding the Fourth Proportional to 122,974.41, 184,707.45 and 118,938.99
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Solution
The fourth proportional to 122,974.41, 184,707.45 and 118,938.99 is: 178,646.25
Step by Step Solution
- Step 1: Write the proportion equation
122,974.41 : 184,707.45 = 118,938.99 : x - Step 2: Convert to fraction form
122,974.41/184,707.45 = 118,938.99/x - Step 3: Cross multiply
122,974.41x = 184,707.45 × 118,938.99 - Step 4: Simplify right side
122,974.41x = 21,968,917,548.48 - Step 5: Solve for x
x = 21,968,917,548.48/122,974.41 - Step 6: Final answer
x = 178,646.25
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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.