Finding the Fourth Proportional to 158,118.84, 218,078.40 and 119,485.68
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Solution
The fourth proportional to 158,118.84, 218,078.40 and 119,485.68 is: 164,795.33
Step by Step Solution
- Step 1: Write the proportion equation
158,118.84 : 218,078.40 = 119,485.68 : x - Step 2: Convert to fraction form
158,118.84/218,078.40 = 119,485.68/x - Step 3: Cross multiply
158,118.84x = 218,078.40 × 119,485.68 - Step 4: Simplify right side
158,118.84x = 26,057,245,917.31 - Step 5: Solve for x
x = 26,057,245,917.31/158,118.84 - Step 6: Final answer
x = 164,795.33
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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.