Finding the Fourth Proportional to 97,933.52, 135,189.56 and 66,145.48
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Solution
The fourth proportional to 97,933.52, 135,189.56 and 66,145.48 is: 91,308.66
Step by Step Solution
- Step 1: Write the proportion equation
97,933.52 : 135,189.56 = 66,145.48 : x - Step 2: Convert to fraction form
97,933.52/135,189.56 = 66,145.48/x - Step 3: Cross multiply
97,933.52x = 135,189.56 × 66,145.48 - Step 4: Simplify right side
97,933.52x = 8,942,178,337.19 - Step 5: Solve for x
x = 8,942,178,337.19/97,933.52 - Step 6: Final answer
x = 91,308.66
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1.5x scale
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.