Finding the Fourth Proportional to 158,520.08, 218,780.24 and 98,110.18
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Solution
The fourth proportional to 158,520.08, 218,780.24 and 98,110.18 is: 135,405.99
Step by Step Solution
- Step 1: Write the proportion equation
158,520.08 : 218,780.24 = 98,110.18 : x - Step 2: Convert to fraction form
158,520.08/218,780.24 = 98,110.18/x - Step 3: Cross multiply
158,520.08x = 218,780.24 × 98,110.18 - Step 4: Simplify right side
158,520.08x = 21,464,568,726.84 - Step 5: Solve for x
x = 21,464,568,726.84/158,520.08 - Step 6: Final answer
x = 135,405.99
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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.