Finding the Fourth Proportional to 155,763.84, 214,953.97 and 84,143.84
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Solution
The fourth proportional to 155,763.84, 214,953.97 and 84,143.84 is: 116,118.43
Step by Step Solution
- Step 1: Write the proportion equation
155,763.84 : 214,953.97 = 84,143.84 : x - Step 2: Convert to fraction form
155,763.84/214,953.97 = 84,143.84/x - Step 3: Cross multiply
155,763.84x = 214,953.97 × 84,143.84 - Step 4: Simplify right side
155,763.84x = 18,087,052,038.33 - Step 5: Solve for x
x = 18,087,052,038.33/155,763.84 - Step 6: Final answer
x = 116,118.43
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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.