Finding the Fourth Proportional to 135,450.02, 186,924.14 and 74,202.06
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Solution
The fourth proportional to 135,450.02, 186,924.14 and 74,202.06 is: 102,400.55
Step by Step Solution
- Step 1: Write the proportion equation
135,450.02 : 186,924.14 = 74,202.06 : x - Step 2: Convert to fraction form
135,450.02/186,924.14 = 74,202.06/x - Step 3: Cross multiply
135,450.02x = 186,924.14 × 74,202.06 - Step 4: Simplify right side
135,450.02x = 13,870,156,859.94 - Step 5: Solve for x
x = 13,870,156,859.94/135,450.02 - Step 6: Final answer
x = 102,400.55
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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.