Finding the Fourth Proportional to 133,129.36, 199,722.84 and 61,999.12
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Solution
The fourth proportional to 133,129.36, 199,722.84 and 61,999.12 is: 93,012.09
Step by Step Solution
- Step 1: Write the proportion equation
133,129.36 : 199,722.84 = 61,999.12 : x - Step 2: Convert to fraction form
133,129.36/199,722.84 = 61,999.12/x - Step 3: Cross multiply
133,129.36x = 199,722.84 × 61,999.12 - Step 4: Simplify right side
133,129.36x = 12,382,640,323.90 - Step 5: Solve for x
x = 12,382,640,323.90/133,129.36 - Step 6: Final answer
x = 93,012.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.