Finding the Fourth Proportional to 117,497.44, 162,231.80 and 72,237.08
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Solution
The fourth proportional to 117,497.44, 162,231.80 and 72,237.08 is: 99,739.63
Step by Step Solution
- Step 1: Write the proportion equation
117,497.44 : 162,231.80 = 72,237.08 : x - Step 2: Convert to fraction form
117,497.44/162,231.80 = 72,237.08/x - Step 3: Cross multiply
117,497.44x = 162,231.80 × 72,237.08 - Step 4: Simplify right side
117,497.44x = 11,719,151,515.14 - Step 5: Solve for x
x = 11,719,151,515.14/117,497.44 - Step 6: Final answer
x = 99,739.63
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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.