Finding the Fourth Proportional to 133,390.05, 184,076.93 and 72,961.88
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Solution
The fourth proportional to 133,390.05, 184,076.93 and 72,961.88 is: 100,686.65
Step by Step Solution
- Step 1: Write the proportion equation
133,390.05 : 184,076.93 = 72,961.88 : x - Step 2: Convert to fraction form
133,390.05/184,076.93 = 72,961.88/x - Step 3: Cross multiply
133,390.05x = 184,076.93 × 72,961.88 - Step 4: Simplify right side
133,390.05x = 13,430,597,592.23 - Step 5: Solve for x
x = 13,430,597,592.23/133,390.05 - Step 6: Final answer
x = 100,686.65
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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.