Finding the Fourth Proportional to 117,949.68, 162,768.60 and 70,201.80
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Solution
The fourth proportional to 117,949.68, 162,768.60 and 70,201.80 is: 96,877.32
Step by Step Solution
- Step 1: Write the proportion equation
117,949.68 : 162,768.60 = 70,201.80 : x - Step 2: Convert to fraction form
117,949.68/162,768.60 = 70,201.80/x - Step 3: Cross multiply
117,949.68x = 162,768.60 × 70,201.80 - Step 4: Simplify right side
117,949.68x = 11,426,648,703.48 - Step 5: Solve for x
x = 11,426,648,703.48/117,949.68 - Step 6: Final answer
x = 96,877.32
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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.