Finding the Fourth Proportional to 133,480.13, 184,201.16 and 76,128.82
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Solution
The fourth proportional to 133,480.13, 184,201.16 and 76,128.82 is: 105,056.96
Step by Step Solution
- Step 1: Write the proportion equation
133,480.13 : 184,201.16 = 76,128.82 : x - Step 2: Convert to fraction form
133,480.13/184,201.16 = 76,128.82/x - Step 3: Cross multiply
133,480.13x = 184,201.16 × 76,128.82 - Step 4: Simplify right side
133,480.13x = 14,023,016,112.28 - Step 5: Solve for x
x = 14,023,016,112.28/133,480.13 - Step 6: Final answer
x = 105,056.96
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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.