Finding the Fourth Proportional to 166,967.52, 230,720.68 and 121,566.68
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Solution
The fourth proportional to 166,967.52, 230,720.68 and 121,566.68 is: 167,984.45
Step by Step Solution
- Step 1: Write the proportion equation
166,967.52 : 230,720.68 = 121,566.68 : x - Step 2: Convert to fraction form
166,967.52/230,720.68 = 121,566.68/x - Step 3: Cross multiply
166,967.52x = 230,720.68 × 121,566.68 - Step 4: Simplify right side
166,967.52x = 28,047,947,074.94 - Step 5: Solve for x
x = 28,047,947,074.94/166,967.52 - Step 6: Final answer
x = 167,984.45
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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.