Finding the Fourth Proportional to 117,609.36, 162,302.06 and 63,894.80
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Solution
The fourth proportional to 117,609.36, 162,302.06 and 63,894.80 is: 88,175.45
Step by Step Solution
- Step 1: Write the proportion equation
117,609.36 : 162,302.06 = 63,894.80 : x - Step 2: Convert to fraction form
117,609.36/162,302.06 = 63,894.80/x - Step 3: Cross multiply
117,609.36x = 162,302.06 × 63,894.80 - Step 4: Simplify right side
117,609.36x = 10,370,257,663.29 - Step 5: Solve for x
x = 10,370,257,663.29/117,609.36 - Step 6: Final answer
x = 88,175.45
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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.