Finding the Fourth Proportional to 136,866.84, 205,305.84 and 46,971.36
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Solution
The fourth proportional to 136,866.84, 205,305.84 and 46,971.36 is: 70,458.96
Step by Step Solution
- Step 1: Write the proportion equation
136,866.84 : 205,305.84 = 46,971.36 : x - Step 2: Convert to fraction form
136,866.84/205,305.84 = 46,971.36/x - Step 3: Cross multiply
136,866.84x = 205,305.84 × 46,971.36 - Step 4: Simplify right side
136,866.84x = 9,643,494,520.74 - Step 5: Solve for x
x = 9,643,494,520.74/136,866.84 - Step 6: Final answer
x = 70,458.96
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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.