Finding the Fourth Proportional to 157,134.94, 216,868.56 and 89,168.68
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Solution
The fourth proportional to 157,134.94, 216,868.56 and 89,168.68 is: 123,065.46
Step by Step Solution
- Step 1: Write the proportion equation
157,134.94 : 216,868.56 = 89,168.68 : x - Step 2: Convert to fraction form
157,134.94/216,868.56 = 89,168.68/x - Step 3: Cross multiply
157,134.94x = 216,868.56 × 89,168.68 - Step 4: Simplify right side
157,134.94x = 19,337,883,228.70 - Step 5: Solve for x
x = 19,337,883,228.70/157,134.94 - Step 6: Final answer
x = 123,065.46
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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.