Finding the Fourth Proportional to 103,025.79, 142,192.73 and 70,733.99
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Solution
The fourth proportional to 103,025.79, 142,192.73 and 70,733.99 is: 97,624.68
Step by Step Solution
- Step 1: Write the proportion equation
103,025.79 : 142,192.73 = 70,733.99 : x - Step 2: Convert to fraction form
103,025.79/142,192.73 = 70,733.99/x - Step 3: Cross multiply
103,025.79x = 142,192.73 × 70,733.99 - Step 4: Simplify right side
103,025.79x = 10,057,859,674.21 - Step 5: Solve for x
x = 10,057,859,674.21/103,025.79 - Step 6: Final answer
x = 97,624.68
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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.