Finding the Fourth Proportional to 149,268.38, 205,988.34 and 84,737.06
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Solution
The fourth proportional to 149,268.38, 205,988.34 and 84,737.06 is: 116,935.99
Step by Step Solution
- Step 1: Write the proportion equation
149,268.38 : 205,988.34 = 84,737.06 : x - Step 2: Convert to fraction form
149,268.38/205,988.34 = 84,737.06/x - Step 3: Cross multiply
149,268.38x = 205,988.34 × 84,737.06 - Step 4: Simplify right side
149,268.38x = 17,454,846,325.88 - Step 5: Solve for x
x = 17,454,846,325.88/149,268.38 - Step 6: Final answer
x = 116,935.99
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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.