Finding the Fourth Proportional to 117,430.67, 162,054.11 and 63,715.68
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Solution
The fourth proportional to 117,430.67, 162,054.11 and 63,715.68 is: 87,927.52
Step by Step Solution
- Step 1: Write the proportion equation
117,430.67 : 162,054.11 = 63,715.68 : x - Step 2: Convert to fraction form
117,430.67/162,054.11 = 63,715.68/x - Step 3: Cross multiply
117,430.67x = 162,054.11 × 63,715.68 - Step 4: Simplify right side
117,430.67x = 10,325,387,815.44 - Step 5: Solve for x
x = 10,325,387,815.44/117,430.67 - Step 6: Final answer
x = 87,927.52
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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.