Finding the Fourth Proportional to 129,763.90, 179,106.80 and 73,208.08
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Solution
The fourth proportional to 129,763.90, 179,106.80 and 73,208.08 is: 101,045.55
Step by Step Solution
- Step 1: Write the proportion equation
129,763.90 : 179,106.80 = 73,208.08 : x - Step 2: Convert to fraction form
129,763.90/179,106.80 = 73,208.08/x - Step 3: Cross multiply
129,763.90x = 179,106.80 × 73,208.08 - Step 4: Simplify right side
129,763.90x = 13,112,064,942.94 - Step 5: Solve for x
x = 13,112,064,942.94/129,763.90 - Step 6: Final answer
x = 101,045.55
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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.