Finding the Fourth Proportional to 133,902.28, 184,781.86 and 74,965.03
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Solution
The fourth proportional to 133,902.28, 184,781.86 and 74,965.03 is: 103,449.90
Step by Step Solution
- Step 1: Write the proportion equation
133,902.28 : 184,781.86 = 74,965.03 : x - Step 2: Convert to fraction form
133,902.28/184,781.86 = 74,965.03/x - Step 3: Cross multiply
133,902.28x = 184,781.86 × 74,965.03 - Step 4: Simplify right side
133,902.28x = 13,852,177,678.36 - Step 5: Solve for x
x = 13,852,177,678.36/133,902.28 - Step 6: Final answer
x = 103,449.90
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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.