Finding the Fourth Proportional to 149,250.54, 205,955.28 and 84,721.08
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Solution
The fourth proportional to 149,250.54, 205,955.28 and 84,721.08 is: 116,909.15
Step by Step Solution
- Step 1: Write the proportion equation
149,250.54 : 205,955.28 = 84,721.08 : x - Step 2: Convert to fraction form
149,250.54/205,955.28 = 84,721.08/x - Step 3: Cross multiply
149,250.54x = 205,955.28 × 84,721.08 - Step 4: Simplify right side
149,250.54x = 17,448,753,753.30 - Step 5: Solve for x
x = 17,448,753,753.30/149,250.54 - Step 6: Final answer
x = 116,909.15
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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.