Finding the Fourth Proportional to 115,389.29, 172,514.95 and 97,816.06
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Solution
The fourth proportional to 115,389.29, 172,514.95 and 97,816.06 is: 146,241.75
Step by Step Solution
- Step 1: Write the proportion equation
115,389.29 : 172,514.95 = 97,816.06 : x - Step 2: Convert to fraction form
115,389.29/172,514.95 = 97,816.06/x - Step 3: Cross multiply
115,389.29x = 172,514.95 × 97,816.06 - Step 4: Simplify right side
115,389.29x = 16,874,731,700.80 - Step 5: Solve for x
x = 16,874,731,700.80/115,389.29 - Step 6: Final answer
x = 146,241.75
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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.