Finding the Fourth Proportional to 117,579.62, 162,261.06 and 63,865.68
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Solution
The fourth proportional to 117,579.62, 162,261.06 and 63,865.68 is: 88,135.28
Step by Step Solution
- Step 1: Write the proportion equation
117,579.62 : 162,261.06 = 63,865.68 : x - Step 2: Convert to fraction form
117,579.62/162,261.06 = 63,865.68/x - Step 3: Cross multiply
117,579.62x = 162,261.06 × 63,865.68 - Step 4: Simplify right side
117,579.62x = 10,362,912,934.42 - Step 5: Solve for x
x = 10,362,912,934.42/117,579.62 - Step 6: Final answer
x = 88,135.28
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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.