Finding the Fourth Proportional to 149,133.40, 205,807.62 and 84,607.00
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Solution
The fourth proportional to 149,133.40, 205,807.62 and 84,607.00 is: 116,759.65
Step by Step Solution
- Step 1: Write the proportion equation
149,133.40 : 205,807.62 = 84,607.00 : x - Step 2: Convert to fraction form
149,133.40/205,807.62 = 84,607.00/x - Step 3: Cross multiply
149,133.40x = 205,807.62 × 84,607.00 - Step 4: Simplify right side
149,133.40x = 17,412,763,853.27 - Step 5: Solve for x
x = 17,412,763,853.27/149,133.40 - Step 6: Final answer
x = 116,759.65
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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.