Finding the Fourth Proportional to 145.71, 201.26 and 99
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Solution
The fourth proportional to 145.71, 201.26 and 99 is: 136.74
Step by Step Solution
- Step 1: Write the proportion equation
145.71 : 201.26 = 99 : x - Step 2: Convert to fraction form
145.71/201.26 = 99/x - Step 3: Cross multiply
145.71x = 201.26 × 99 - Step 4: Simplify right side
145.71x = 19,924.25 - Step 5: Solve for x
x = 19,924.25/145.71 - Step 6: Final answer
x = 136.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.