Finding the Fourth Proportional to 122,649.60, 183,585.60 and 87,657.60
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Solution
The fourth proportional to 122,649.60, 183,585.60 and 87,657.60 is: 131,208.52
Step by Step Solution
- Step 1: Write the proportion equation
122,649.60 : 183,585.60 = 87,657.60 : x - Step 2: Convert to fraction form
122,649.60/183,585.60 = 87,657.60/x - Step 3: Cross multiply
122,649.60x = 183,585.60 × 87,657.60 - Step 4: Simplify right side
122,649.60x = 16,092,673,090.56 - Step 5: Solve for x
x = 16,092,673,090.56/122,649.60 - Step 6: Final answer
x = 131,208.52
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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.