Finding the Fourth Proportional to 154,943.04, 213,792.96 and 104,029.68
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Solution
The fourth proportional to 154,943.04, 213,792.96 and 104,029.68 is: 143,541.87
Step by Step Solution
- Step 1: Write the proportion equation
154,943.04 : 213,792.96 = 104,029.68 : x - Step 2: Convert to fraction form
154,943.04/213,792.96 = 104,029.68/x - Step 3: Cross multiply
154,943.04x = 213,792.96 × 104,029.68 - Step 4: Simplify right side
154,943.04x = 22,240,813,215.05 - Step 5: Solve for x
x = 22,240,813,215.05/154,943.04 - Step 6: Final answer
x = 143,541.87
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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.