Finding the Fourth Proportional to 115,880.18, 159,928.12 and 70,584.68
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Solution
The fourth proportional to 115,880.18, 159,928.12 and 70,584.68 is: 97,415.06
Step by Step Solution
- Step 1: Write the proportion equation
115,880.18 : 159,928.12 = 70,584.68 : x - Step 2: Convert to fraction form
115,880.18/159,928.12 = 70,584.68/x - Step 3: Cross multiply
115,880.18x = 159,928.12 × 70,584.68 - Step 4: Simplify right side
115,880.18x = 11,288,475,173.20 - Step 5: Solve for x
x = 11,288,475,173.20/115,880.18 - Step 6: Final answer
x = 97,415.06
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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.