Finding the Fourth Proportional to 135,707.70, 203,464.35 and 56,781.30
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Solution
The fourth proportional to 135,707.70, 203,464.35 and 56,781.30 is: 85,131.28
Step by Step Solution
- Step 1: Write the proportion equation
135,707.70 : 203,464.35 = 56,781.30 : x - Step 2: Convert to fraction form
135,707.70/203,464.35 = 56,781.30/x - Step 3: Cross multiply
135,707.70x = 203,464.35 × 56,781.30 - Step 4: Simplify right side
135,707.70x = 11,552,970,296.66 - Step 5: Solve for x
x = 11,552,970,296.66/135,707.70 - Step 6: Final answer
x = 85,131.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.