Finding the Fourth Proportional to 130,708.08, 195,976.08 and 86,199.12
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Solution
The fourth proportional to 130,708.08, 195,976.08 and 86,199.12 is: 129,241.94
Step by Step Solution
- Step 1: Write the proportion equation
130,708.08 : 195,976.08 = 86,199.12 : x - Step 2: Convert to fraction form
130,708.08/195,976.08 = 86,199.12/x - Step 3: Cross multiply
130,708.08x = 195,976.08 × 86,199.12 - Step 4: Simplify right side
130,708.08x = 16,892,965,637.05 - Step 5: Solve for x
x = 16,892,965,637.05/130,708.08 - Step 6: Final answer
x = 129,241.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.