Finding the Fourth Proportional to 133,397.92, 184,135.44 and 76,831.84
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Solution
The fourth proportional to 133,397.92, 184,135.44 and 76,831.84 is: 106,054.61
Step by Step Solution
- Step 1: Write the proportion equation
133,397.92 : 184,135.44 = 76,831.84 : x - Step 2: Convert to fraction form
133,397.92/184,135.44 = 76,831.84/x - Step 3: Cross multiply
133,397.92x = 184,135.44 × 76,831.84 - Step 4: Simplify right side
133,397.92x = 14,147,464,664.41 - Step 5: Solve for x
x = 14,147,464,664.41/133,397.92 - Step 6: Final answer
x = 106,054.61
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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.