Finding the Fourth Proportional to 171,881.24, 257,828.76 and 81,877.68
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Solution
The fourth proportional to 171,881.24, 257,828.76 and 81,877.68 is: 122,819.81
Step by Step Solution
- Step 1: Write the proportion equation
171,881.24 : 257,828.76 = 81,877.68 : x - Step 2: Convert to fraction form
171,881.24/257,828.76 = 81,877.68/x - Step 3: Cross multiply
171,881.24x = 257,828.76 × 81,877.68 - Step 4: Simplify right side
171,881.24x = 21,110,420,706.08 - Step 5: Solve for x
x = 21,110,420,706.08/171,881.24 - Step 6: Final answer
x = 122,819.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.