Finding the Fourth Proportional to 98,102.08, 135,381.84 and 53,390.08
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Solution
The fourth proportional to 98,102.08, 135,381.84 and 53,390.08 is: 73,678.84
Step by Step Solution
- Step 1: Write the proportion equation
98,102.08 : 135,381.84 = 53,390.08 : x - Step 2: Convert to fraction form
98,102.08/135,381.84 = 53,390.08/x - Step 3: Cross multiply
98,102.08x = 135,381.84 × 53,390.08 - Step 4: Simplify right side
98,102.08x = 7,228,047,268.15 - Step 5: Solve for x
x = 7,228,047,268.15/98,102.08 - Step 6: Final answer
x = 73,678.84
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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.