Finding the Fourth Proportional to 158,210.08, 218,330.37 and 86,594.74
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Solution
The fourth proportional to 158,210.08, 218,330.37 and 86,594.74 is: 119,500.99
Step by Step Solution
- Step 1: Write the proportion equation
158,210.08 : 218,330.37 = 86,594.74 : x - Step 2: Convert to fraction form
158,210.08/218,330.37 = 86,594.74/x - Step 3: Cross multiply
158,210.08x = 218,330.37 × 86,594.74 - Step 4: Simplify right side
158,210.08x = 18,906,261,078.43 - Step 5: Solve for x
x = 18,906,261,078.43/158,210.08 - Step 6: Final answer
x = 119,500.99
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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.