Finding the Fourth Proportional to 99,213.24, 136,967.58 and 76,502.46
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Solution
The fourth proportional to 99,213.24, 136,967.58 and 76,502.46 is: 105,614.50
Step by Step Solution
- Step 1: Write the proportion equation
99,213.24 : 136,967.58 = 76,502.46 : x - Step 2: Convert to fraction form
99,213.24/136,967.58 = 76,502.46/x - Step 3: Cross multiply
99,213.24x = 136,967.58 × 76,502.46 - Step 4: Simplify right side
99,213.24x = 10,478,356,810.25 - Step 5: Solve for x
x = 10,478,356,810.25/99,213.24 - Step 6: Final answer
x = 105,614.50
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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.