Finding the Fourth Proportional to 125,946.80, 188,482.80 and 86,580.80
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Solution
The fourth proportional to 125,946.80, 188,482.80 and 86,580.80 is: 129,570.51
Step by Step Solution
- Step 1: Write the proportion equation
125,946.80 : 188,482.80 = 86,580.80 : x - Step 2: Convert to fraction form
125,946.80/188,482.80 = 86,580.80/x - Step 3: Cross multiply
125,946.80x = 188,482.80 × 86,580.80 - Step 4: Simplify right side
125,946.80x = 16,318,991,610.24 - Step 5: Solve for x
x = 16,318,991,610.24/125,946.80 - Step 6: Final answer
x = 129,570.51
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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.