Finding the Fourth Proportional to 104,089.88, 143,644.12 and 56,343.08
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Solution
The fourth proportional to 104,089.88, 143,644.12 and 56,343.08 is: 77,753.50
Step by Step Solution
- Step 1: Write the proportion equation
104,089.88 : 143,644.12 = 56,343.08 : x - Step 2: Convert to fraction form
104,089.88/143,644.12 = 56,343.08/x - Step 3: Cross multiply
104,089.88x = 143,644.12 × 56,343.08 - Step 4: Simplify right side
104,089.88x = 8,093,352,362.94 - Step 5: Solve for x
x = 8,093,352,362.94/104,089.88 - Step 6: Final answer
x = 77,753.50
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1.5x scale
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.