Finding the Fourth Proportional to 145,950.70, 201,411.87 and 78,882.70
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Solution
The fourth proportional to 145,950.70, 201,411.87 and 78,882.70 is: 108,858.07
Step by Step Solution
- Step 1: Write the proportion equation
145,950.70 : 201,411.87 = 78,882.70 : x - Step 2: Convert to fraction form
145,950.70/201,411.87 = 78,882.70/x - Step 3: Cross multiply
145,950.70x = 201,411.87 × 78,882.70 - Step 4: Simplify right side
145,950.70x = 15,887,911,110.59 - Step 5: Solve for x
x = 15,887,911,110.59/145,950.70 - Step 6: Final answer
x = 108,858.07
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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.