Finding the Fourth Proportional to 145,881.02, 201,315.84 and 78,813.02
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Solution
The fourth proportional to 145,881.02, 201,315.84 and 78,813.02 is: 108,761.99
Step by Step Solution
- Step 1: Write the proportion equation
145,881.02 : 201,315.84 = 78,813.02 : x - Step 2: Convert to fraction form
145,881.02/201,315.84 = 78,813.02/x - Step 3: Cross multiply
145,881.02x = 201,315.84 × 78,813.02 - Step 4: Simplify right side
145,881.02x = 15,866,309,324.24 - Step 5: Solve for x
x = 15,866,309,324.24/145,881.02 - Step 6: Final answer
x = 108,761.99
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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.