Finding the Fourth Proportional to 101,022.65, 139,386.66 and 65,204.99
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Solution
The fourth proportional to 101,022.65, 139,386.66 and 65,204.99 is: 89,967.01
Step by Step Solution
- Step 1: Write the proportion equation
101,022.65 : 139,386.66 = 65,204.99 : x - Step 2: Convert to fraction form
101,022.65/139,386.66 = 65,204.99/x - Step 3: Cross multiply
101,022.65x = 139,386.66 × 65,204.99 - Step 4: Simplify right side
101,022.65x = 9,088,705,771.43 - Step 5: Solve for x
x = 9,088,705,771.43/101,022.65 - Step 6: Final answer
x = 89,967.01
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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.