Finding the Fourth Proportional to 98,448.16, 147,639.84 and 54,124.96
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Solution
The fourth proportional to 98,448.16, 147,639.84 and 54,124.96 is: 81,169.63
Step by Step Solution
- Step 1: Write the proportion equation
98,448.16 : 147,639.84 = 54,124.96 : x - Step 2: Convert to fraction form
98,448.16/147,639.84 = 54,124.96/x - Step 3: Cross multiply
98,448.16x = 147,639.84 × 54,124.96 - Step 4: Simplify right side
98,448.16x = 7,991,000,434.41 - Step 5: Solve for x
x = 7,991,000,434.41/98,448.16 - Step 6: Final answer
x = 81,169.63
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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.