Finding the Fourth Proportional to 157,133.21, 216,848.75 and 89,153.05
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Solution
The fourth proportional to 157,133.21, 216,848.75 and 89,153.05 is: 123,033.99
Step by Step Solution
- Step 1: Write the proportion equation
157,133.21 : 216,848.75 = 89,153.05 : x - Step 2: Convert to fraction form
157,133.21/216,848.75 = 89,153.05/x - Step 3: Cross multiply
157,133.21x = 216,848.75 × 89,153.05 - Step 4: Simplify right side
157,133.21x = 19,332,726,463.30 - Step 5: Solve for x
x = 19,332,726,463.30/157,133.21 - Step 6: Final answer
x = 123,033.99
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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.