Finding the Fourth Proportional to 171,742.08, 236,955.64 and 111,315.28
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Solution
The fourth proportional to 171,742.08, 236,955.64 and 111,315.28 is: 153,583.70
Step by Step Solution
- Step 1: Write the proportion equation
171,742.08 : 236,955.64 = 111,315.28 : x - Step 2: Convert to fraction form
171,742.08/236,955.64 = 111,315.28/x - Step 3: Cross multiply
171,742.08x = 236,955.64 × 111,315.28 - Step 4: Simplify right side
171,742.08x = 26,376,783,414.18 - Step 5: Solve for x
x = 26,376,783,414.18/171,742.08 - Step 6: Final answer
x = 153,583.70
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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.