Finding the Fourth Proportional to 134,678.79, 185,856.48 and 74,249.01
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Solution
The fourth proportional to 134,678.79, 185,856.48 and 74,249.01 is: 102,463.50
Step by Step Solution
- Step 1: Write the proportion equation
134,678.79 : 185,856.48 = 74,249.01 : x - Step 2: Convert to fraction form
134,678.79/185,856.48 = 74,249.01/x - Step 3: Cross multiply
134,678.79x = 185,856.48 × 74,249.01 - Step 4: Simplify right side
134,678.79x = 13,799,659,642.08 - Step 5: Solve for x
x = 13,799,659,642.08/134,678.79 - Step 6: Final answer
x = 102,463.50
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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.