Finding the Fourth Proportional to 143,257.77, 214,948.76 and 54,536.49
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Solution
The fourth proportional to 143,257.77, 214,948.76 and 54,536.49 is: 81,828.38
Step by Step Solution
- Step 1: Write the proportion equation
143,257.77 : 214,948.76 = 54,536.49 : x - Step 2: Convert to fraction form
143,257.77/214,948.76 = 54,536.49/x - Step 3: Cross multiply
143,257.77x = 214,948.76 × 54,536.49 - Step 4: Simplify right side
143,257.77x = 11,722,550,627.57 - Step 5: Solve for x
x = 11,722,550,627.57/143,257.77 - Step 6: Final answer
x = 81,828.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.