Finding the Fourth Proportional to 172,684.73, 238,311.53 and 100,089.99
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Solution
The fourth proportional to 172,684.73, 238,311.53 and 100,089.99 is: 138,128.01
Step by Step Solution
- Step 1: Write the proportion equation
172,684.73 : 238,311.53 = 100,089.99 : x - Step 2: Convert to fraction form
172,684.73/238,311.53 = 100,089.99/x - Step 3: Cross multiply
172,684.73x = 238,311.53 × 100,089.99 - Step 4: Simplify right side
172,684.73x = 23,852,598,154.13 - Step 5: Solve for x
x = 23,852,598,154.13/172,684.73 - Step 6: Final answer
x = 138,128.01
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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.