Finding the Fourth Proportional to 115,985.96, 160,057.99 and 67,584.88
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Solution
The fourth proportional to 115,985.96, 160,057.99 and 67,584.88 is: 93,265.60
Step by Step Solution
- Step 1: Write the proportion equation
115,985.96 : 160,057.99 = 67,584.88 : x - Step 2: Convert to fraction form
115,985.96/160,057.99 = 67,584.88/x - Step 3: Cross multiply
115,985.96x = 160,057.99 × 67,584.88 - Step 4: Simplify right side
115,985.96x = 10,817,499,478.08 - Step 5: Solve for x
x = 10,817,499,478.08/115,985.96 - Step 6: Final answer
x = 93,265.60
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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.