Finding the Fourth Proportional to 150,698.91, 207,974.89 and 99,623.06
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Solution
The fourth proportional to 150,698.91, 207,974.89 and 99,623.06 is: 137,486.70
Step by Step Solution
- Step 1: Write the proportion equation
150,698.91 : 207,974.89 = 99,623.06 : x - Step 2: Convert to fraction form
150,698.91/207,974.89 = 99,623.06/x - Step 3: Cross multiply
150,698.91x = 207,974.89 × 99,623.06 - Step 4: Simplify right side
150,698.91x = 20,719,095,464.90 - Step 5: Solve for x
x = 20,719,095,464.90/150,698.91 - Step 6: Final answer
x = 137,486.70
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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.