Finding the Fourth Proportional to 118,849.58, 163,971.56 and 70,441.70
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Solution
The fourth proportional to 118,849.58, 163,971.56 and 70,441.70 is: 97,185.34
Step by Step Solution
- Step 1: Write the proportion equation
118,849.58 : 163,971.56 = 70,441.70 : x - Step 2: Convert to fraction form
118,849.58/163,971.56 = 70,441.70/x - Step 3: Cross multiply
118,849.58x = 163,971.56 × 70,441.70 - Step 4: Simplify right side
118,849.58x = 11,550,436,024.09 - Step 5: Solve for x
x = 11,550,436,024.09/118,849.58 - Step 6: Final answer
x = 97,185.34
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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.