Finding the Fourth Proportional to 125,795.84, 188,781.17 and 81,312.26
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Solution
The fourth proportional to 125,795.84, 188,781.17 and 81,312.26 is: 122,024.88
Step by Step Solution
- Step 1: Write the proportion equation
125,795.84 : 188,781.17 = 81,312.26 : x - Step 2: Convert to fraction form
125,795.84/188,781.17 = 81,312.26/x - Step 3: Cross multiply
125,795.84x = 188,781.17 × 81,312.26 - Step 4: Simplify right side
125,795.84x = 15,350,222,227.68 - Step 5: Solve for x
x = 15,350,222,227.68/125,795.84 - Step 6: Final answer
x = 122,024.88
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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.