Finding the Fourth Proportional to 136,669.60, 204,831.60 and 121,808.80
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Solution
The fourth proportional to 136,669.60, 204,831.60 and 121,808.80 is: 182,559.19
Step by Step Solution
- Step 1: Write the proportion equation
136,669.60 : 204,831.60 = 121,808.80 : x - Step 2: Convert to fraction form
136,669.60/204,831.60 = 121,808.80/x - Step 3: Cross multiply
136,669.60x = 204,831.60 × 121,808.80 - Step 4: Simplify right side
136,669.60x = 24,950,291,398.08 - Step 5: Solve for x
x = 24,950,291,398.08/136,669.60 - Step 6: Final answer
x = 182,559.19
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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.