Finding the Fourth Proportional to 134,708.12, 185,893.22 and 74,278.75
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Solution
The fourth proportional to 134,708.12, 185,893.22 and 74,278.75 is: 102,502.48
Step by Step Solution
- Step 1: Write the proportion equation
134,708.12 : 185,893.22 = 74,278.75 : x - Step 2: Convert to fraction form
134,708.12/185,893.22 = 74,278.75/x - Step 3: Cross multiply
134,708.12x = 185,893.22 × 74,278.75 - Step 4: Simplify right side
134,708.12x = 13,807,916,015.08 - Step 5: Solve for x
x = 13,807,916,015.08/134,708.12 - Step 6: Final answer
x = 102,502.48
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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.