Finding the Fourth Proportional to 122,493.36, 169,050.60 and 68,781.96
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Solution
The fourth proportional to 122,493.36, 169,050.60 and 68,781.96 is: 94,924.59
Step by Step Solution
- Step 1: Write the proportion equation
122,493.36 : 169,050.60 = 68,781.96 : x - Step 2: Convert to fraction form
122,493.36/169,050.60 = 68,781.96/x - Step 3: Cross multiply
122,493.36x = 169,050.60 × 68,781.96 - Step 4: Simplify right side
122,493.36x = 11,627,631,607.18 - Step 5: Solve for x
x = 11,627,631,607.18/122,493.36 - Step 6: Final answer
x = 94,924.59
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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.