Finding the Fourth Proportional to 133,781.62, 184,626.93 and 74,165.62
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Solution
The fourth proportional to 133,781.62, 184,626.93 and 74,165.62 is: 102,353.15
Step by Step Solution
- Step 1: Write the proportion equation
133,781.62 : 184,626.93 = 74,165.62 : x - Step 2: Convert to fraction form
133,781.62/184,626.93 = 74,165.62/x - Step 3: Cross multiply
133,781.62x = 184,626.93 × 74,165.62 - Step 4: Simplify right side
133,781.62x = 13,692,970,732.15 - Step 5: Solve for x
x = 13,692,970,732.15/133,781.62 - Step 6: Final answer
x = 102,353.15
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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.