Finding the Fourth Proportional to 187,823.70, 259,203.18 and 102,940.80
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Solution
The fourth proportional to 187,823.70, 259,203.18 and 102,940.80 is: 142,061.85
Step by Step Solution
- Step 1: Write the proportion equation
187,823.70 : 259,203.18 = 102,940.80 : x - Step 2: Convert to fraction form
187,823.70/259,203.18 = 102,940.80/x - Step 3: Cross multiply
187,823.70x = 259,203.18 × 102,940.80 - Step 4: Simplify right side
187,823.70x = 26,682,582,711.74 - Step 5: Solve for x
x = 26,682,582,711.74/187,823.70 - Step 6: Final answer
x = 142,061.85
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1.5x scale
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.