Finding the Fourth Proportional to 157,020.84, 235,360.11 and 77,113.80
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Solution
The fourth proportional to 157,020.84, 235,360.11 and 77,113.80 is: 115,586.65
Step by Step Solution
- Step 1: Write the proportion equation
157,020.84 : 235,360.11 = 77,113.80 : x - Step 2: Convert to fraction form
157,020.84/235,360.11 = 77,113.80/x - Step 3: Cross multiply
157,020.84x = 235,360.11 × 77,113.80 - Step 4: Simplify right side
157,020.84x = 18,149,512,450.52 - Step 5: Solve for x
x = 18,149,512,450.52/157,020.84 - Step 6: Final answer
x = 115,586.65
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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.