Finding the Fourth Proportional to 103,201.80, 154,802.70 and 103,201.80
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Solution
The fourth proportional to 103,201.80, 154,802.70 and 103,201.80 is: 154,802.70
Step by Step Solution
- Step 1: Write the proportion equation
103,201.80 : 154,802.70 = 103,201.80 : x - Step 2: Convert to fraction form
103,201.80/154,802.70 = 103,201.80/x - Step 3: Cross multiply
103,201.80x = 154,802.70 × 103,201.80 - Step 4: Simplify right side
103,201.80x = 15,975,917,284.86 - Step 5: Solve for x
x = 15,975,917,284.86/103,201.80 - Step 6: Final answer
x = 154,802.70
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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.