Finding the Fourth Proportional to 104,828.20, 157,242.30 and 97,829.80
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Solution
The fourth proportional to 104,828.20, 157,242.30 and 97,829.80 is: 146,744.70
Step by Step Solution
- Step 1: Write the proportion equation
104,828.20 : 157,242.30 = 97,829.80 : x - Step 2: Convert to fraction form
104,828.20/157,242.30 = 97,829.80/x - Step 3: Cross multiply
104,828.20x = 157,242.30 × 97,829.80 - Step 4: Simplify right side
104,828.20x = 15,382,982,760.54 - Step 5: Solve for x
x = 15,382,982,760.54/104,828.20 - Step 6: Final answer
x = 146,744.70
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1.5x scale
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.