Finding the Fourth Proportional to 147,154.19, 203,066.80 and 83,490.62
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Solution
The fourth proportional to 147,154.19, 203,066.80 and 83,490.62 is: 115,213.66
Step by Step Solution
- Step 1: Write the proportion equation
147,154.19 : 203,066.80 = 83,490.62 : x - Step 2: Convert to fraction form
147,154.19/203,066.80 = 83,490.62/x - Step 3: Cross multiply
147,154.19x = 203,066.80 × 83,490.62 - Step 4: Simplify right side
147,154.19x = 16,954,171,809.36 - Step 5: Solve for x
x = 16,954,171,809.36/147,154.19 - Step 6: Final answer
x = 115,213.66
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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.