Finding the Fourth Proportional to 117,623.42, 162,284.58 and 66,628.06
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Solution
The fourth proportional to 117,623.42, 162,284.58 and 66,628.06 is: 91,926.48
Step by Step Solution
- Step 1: Write the proportion equation
117,623.42 : 162,284.58 = 66,628.06 : x - Step 2: Convert to fraction form
117,623.42/162,284.58 = 66,628.06/x - Step 3: Cross multiply
117,623.42x = 162,284.58 × 66,628.06 - Step 4: Simplify right side
117,623.42x = 10,812,706,733.31 - Step 5: Solve for x
x = 10,812,706,733.31/117,623.42 - Step 6: Final answer
x = 91,926.48
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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.