Finding the Fourth Proportional to 149,170.14, 205,802.84 and 84,631.78
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Solution
The fourth proportional to 149,170.14, 205,802.84 and 84,631.78 is: 116,762.38
Step by Step Solution
- Step 1: Write the proportion equation
149,170.14 : 205,802.84 = 84,631.78 : x - Step 2: Convert to fraction form
149,170.14/205,802.84 = 84,631.78/x - Step 3: Cross multiply
149,170.14x = 205,802.84 × 84,631.78 - Step 4: Simplify right side
149,170.14x = 17,417,460,678.26 - Step 5: Solve for x
x = 17,417,460,678.26/149,170.14 - Step 6: Final answer
x = 116,762.38
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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.