Finding the Fourth Proportional to 98,174.60, 135,486.63 and 73,932.15
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Solution
The fourth proportional to 98,174.60, 135,486.63 and 73,932.15 is: 102,030.65
Step by Step Solution
- Step 1: Write the proportion equation
98,174.60 : 135,486.63 = 73,932.15 : x - Step 2: Convert to fraction form
98,174.60/135,486.63 = 73,932.15/x - Step 3: Cross multiply
98,174.60x = 135,486.63 × 73,932.15 - Step 4: Simplify right side
98,174.60x = 10,016,817,852.15 - Step 5: Solve for x
x = 10,016,817,852.15/98,174.60 - Step 6: Final answer
x = 102,030.65
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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.