Finding the Fourth Proportional to 115,865.30, 162,444.70 and 115,865.30
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Solution
The fourth proportional to 115,865.30, 162,444.70 and 115,865.30 is: 162,444.70
Step by Step Solution
- Step 1: Write the proportion equation
115,865.30 : 162,444.70 = 115,865.30 : x - Step 2: Convert to fraction form
115,865.30/162,444.70 = 115,865.30/x - Step 3: Cross multiply
115,865.30x = 162,444.70 × 115,865.30 - Step 4: Simplify right side
115,865.30x = 18,821,703,898.91 - Step 5: Solve for x
x = 18,821,703,898.91/115,865.30 - Step 6: Final answer
x = 162,444.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.